Solved Motherboard change vs W11 Install


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Windows 11 Pro
Just a quick question really - if you change your motherboard, are you forced into a clean re-install or can you get your existing OS drive install to play nice (assuming you have bought your own copy of windows)
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
I have done it before in Windows XP, 7, 8 and 10 and 11. If the change is not too large (such as from Intel to AMD and vice versa), Windows will automatically find the drivers and allow you to login to your desktop. You then either trust Windows Update (I don't) to find the rest drivers, or you manually download them and install them. The only drawback is that you will be asked to activate Windows, Microsoft Office and probably some other applications again. I would gladly do that if I can avoid a clean installation which would take more than a couple of days (considering the amount of data to migrate, the number of applications and games to reinstall and my very limited free time). I did a clean installation over a week ago, my computer is working OK, but I still didn't have the time to reinstall everything I had in my old setup. So if I can avoid a clean installation and force an upgrade, I will. I would suggest to backup all your data, just in case, and then try it. If anything goes wrong, you already have the backup to do a clean installation.

PS: If Windows cannot activate automatically when connected to the internet for the first time after the change, select to activate by phone and call Microsoft. Say that your old motherboard died and they should help you. If you don't see the option to activate by phone, press WIN+R to open a Run dialog and type slui 4 to force it. While you talk to them, ask to activate Office as well.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (build 22631.4249) test laptop, Windows 11 Pro v24H2 (build 26100.3476) main PC
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v24H2 (build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
I did it recently with no problems. AMD to AMD.
I ran a repair install which creates a new hardware profile.
 

My Computer

System One

  • OS
    Windows 11 Pro 24H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    MSI
    CPU
    AMD Ryzen 7 9800X3D 8-core
    Motherboard
    MEG X870E Godlike
    Memory
    64GB Corsair Titanium 6000/CL30
    Graphics Card(s)
    MSI Suprim X 3080 Ti
    Sound Card
    Soundblaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming VG289Q
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 9100 Pro 4TB (gen 5 x4, system drive/games)
    Samsung 990 Pro 2TB
    Samsung 980 Pro 2TB
    Samsung 870 Evo 4TB
    Samsung T7 Touch 1TB
    PSU
    Seasonic PX-2200
    Case
    Bequiet! Dark Base Pro 901
    Cooling
    Noctua NH-D15S Chromax black
    Keyboard
    Logitech G915 X (wired)
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    900Mb/sec
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender

My Computers

System One System Two

  • OS
    Windows 11 Pro - Windows 7 HP 64 - Lubuntu
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom build
    CPU
    i5 6600K - 800MHz to 4400MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Win 11
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    (4) -1 BX500 SSD - 128G for Windows 7 and Lubuntu
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Asus Q550LF
    CPU
    i7-4500U 800- 3000MHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs
    & 1T HDD for data
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
Just a quick question really - if you change your motherboard, are you forced into a clean re-install or can you get your existing OS drive install to play nice (assuming you have bought your own copy of windows)
No! You can keep the existing OS as is. I've done it a few times. That said conventional wisdom is the do a clean install anything you change major components, and a motherboard is certainly a major component, but it isn't necessary with Windows 11.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 (Build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom built
    CPU
    Intel Core 9 Ultra
    Motherboard
    Gigabyte Aorus Z890 Xtreme AI Top
    Memory
    64G (4x16) DDR5 Corsair RGB Dominator Platinum (6400Mhz)
    Graphics Card(s)
    Radeon (XFX MERC 310) RX 7900XT
    Sound Card
    Onboard (ESS Sabre HiFi using Realtek drivers)
    Monitor(s) Displays
    27-inch Eizo Color Edge - CG2700X
    Screen Resolution
    3840 x 2160
    Hard Drives
    4 Samsung NVM 990 Pro drives: 1 X 1TB (OS) 2X TB, 1 X 1TB.
    PSU
    Seasonic TX-1300 (1300 Watts)
    Case
    Cooler Master H500M
    Cooling
    Corsair Link Titan 280 RX RGB
    Keyboard
    Logitech Craft
    Mouse
    Logitech MX Master 3
    Internet Speed
    1TB Download. 512mb Upload
    Browser
    Microsoft Edge Chromium
    Antivirus
    Windows Security
    Other Info
    System used for gaming, photography, music, school.
  • Operating System
    Windows 11 Pro 23H2 (Build 22631.4391)
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkPad X1 Carbon (Gen 12)
    CPU
    Intel Core Ultra 7 165U vPro® Processor
    Motherboard
    Vendor
    Memory
    32 GB LPDDR5X-6400MHz (Soldered)
    Graphics card(s)
    Intel Graphics
    Sound Card
    Onboard
    Monitor(s) Displays
    14" 2.8K OLED, Anti Reflection, Touch, HDR 500, 400 nits, 120Hz
    Screen Resolution
    2880 x 1800
    Hard Drives
    1 TB SSD M.2 2280 PCIe Gen4 Performance TLC Opal
    PSU
    Vendor
    Case
    Lenovo
    Cooling
    Vapor Chamber Cooling
    Mouse
    Touchpad: Haptic Touchpad
    Keyboard
    Backlit, Black with Fingerprint Reader and WWAN
    Internet Speed
    100MB
    Browser
    Edge Chromium
    Antivirus
    Windows Security
    Other Info
    202. Build Your Own laptop.
    vPro Certified Model: vPro Enterprise
No! You can keep the existing OS as is. I've done it a few times. That said conventional wisdom is the do a clean install anything you change major components, and a motherboard is certainly a major component, but it isn't necessary with Windows 11.
If you have a computer with a few GB data and 3-5 applications, such as an average office PC, yes a clean installation is best. For a home PC with more than 1TB data and tens applications/games to install, no thanks, I would like to avoid that and spend this time in better ways. Like I said I did a clean installation a week ago and my limited free time haven't let me yet to reinstall everything. I have only installed 2/3 of my stuff to get a functional computer in the mean time. I admit it's a little faster, but I would have avoided it if I could.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (build 22631.4249) test laptop, Windows 11 Pro v24H2 (build 26100.3476) main PC
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v24H2 (build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
If you have a computer with a few GB data and 3-5 applications, such as an average office PC, yes a clean installation is best. For a home PC with more than 1TB data and tens applications/games to install, no thanks, I would like to avoid that and spend this time in better ways. Like I said I did a clean installation a week ago and my limited free time haven't let me yet to reinstall everything. I have only installed 2/3 of my stuff to get a functional computer in the mean time. I admit it's a little faster, but I would have avoided it if I could.
Yes installing Windows on a modern PC with NVME drive takes literally a few minutes, but setting it up again after takes HOURS and that doesn't include the time needed to re-download games from the Windows store
 

My Computer

System One

  • OS
    Windows 11 Pro 24H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    MSI
    CPU
    AMD Ryzen 7 9800X3D 8-core
    Motherboard
    MEG X870E Godlike
    Memory
    64GB Corsair Titanium 6000/CL30
    Graphics Card(s)
    MSI Suprim X 3080 Ti
    Sound Card
    Soundblaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming VG289Q
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 9100 Pro 4TB (gen 5 x4, system drive/games)
    Samsung 990 Pro 2TB
    Samsung 980 Pro 2TB
    Samsung 870 Evo 4TB
    Samsung T7 Touch 1TB
    PSU
    Seasonic PX-2200
    Case
    Bequiet! Dark Base Pro 901
    Cooling
    Noctua NH-D15S Chromax black
    Keyboard
    Logitech G915 X (wired)
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    900Mb/sec
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender
Just a quick question really - if you change your motherboard, are you forced into a clean re-install or can you get your existing OS drive install to play nice (assuming you have bought your own copy of windows)
It is pretty much standard procedure to reinstall your OS after changing out your system board for a different one. Why would you want all that old, useless system data to be cluttering up your system and causing potential BSOD errors? The short answer is YES it can be done but not in all cases. Even if you do manage to boot the old drive you would do well to reinstall the OS. You could try installing the OS to a fresh drive and then putting the old drive in a USB enclosure using Disk Management to drag and drop personal data back onto your newly installed OS — even right onto your desktop if you wish.

Usually while you're online Microsoft will find the activation key if the old drive is connected during installation. You simply hit the "activation button" and when it complains that it can't find a key you then click on the "resolve" option. I've done this many times and it has worked marvellously for me every time. After that you can proceed with what I mentioned in the above paragraph, putting the old drive in a USB enclosure and dragging and dropping all your most prized files into a folder you made on your desk top. Of course you will have to catch up on your updates and reinstall any apps or games etc. that you have grown fond of. I hope this helps.
 

My Computer

System One

  • OS
    WIN 11, WIN 10, WIN 8.1, WIN 7 U, WIN 7 PRO, WIN 7 HOME (32 Bit), LINUX MINT
    Computer type
    PC/Desktop
    Manufacturer/Model
    DIY, ASUS, and DELL
    CPU
    Intel i7 6900K and i9-7960X / AMD 3800X (8 core)
    Motherboard
    ASUS X99E-WS USB 3.1 and ASUS X299 SAGE
    Memory
    128 GB CORSAIR DOMINATOR PLATINUM (B DIE)
    Graphics Card(s)
    NVIDIA 1070 and RTX 3070
    Sound Card
    Crystal Sound (onboard)
    Monitor(s) Displays
    single Samsung 30" 4K and 8" aux monitor
    Screen Resolution
    4K and something equally attrocious. I'll be working on this.
    Hard Drives
    A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W

    Ports X, Y, and Z are reserved for USB access and removable drives.

    Drive types consist of the following: Various mechanical hard drives bearing the brand names, Seagate, Toshiba, and Western Digital. Various NVMe drives bearing the brand names Kingston, Intel, Silicon Power, Crucial, Western Digital, and Team Group. Various SATA SSDs bearing various different brand names.

    RAID arrays included:

    LSI RAID 10 (WD Velociraptors) 1115.72 GB
    LSI RAID 10 (WD SSDS) 463.80 GB

    INTEL RAID 0 (KINGSTON HYPER X) System 447.14 GB
    INTEL RAID 1 TOSHIBA ENTERPRIZE class Data 2794.52 GB
    INTEL RAID 1 SEAGATE HYBRID 931.51 GB
    PSU
    SEVERAL. I prefer my Corsair Platinum HX1000i but I also like EVGA power supplies
    Case
    ThermalTake Level 10 GT (among others)
    Cooling
    Noctua is my favorite and I use it in my main. I also own various other coolers.
    Keyboard
    all kinds.
    Mouse
    all kinds
    Internet Speed
    360 mbps - 1 gbps (depending)
    Browser
    FIREFOX
    Antivirus
    KASPERSKY (no apologies)
    Other Info
    Gave Dell touch screen with Windows 11 to daughter and got me an OTVOC. Being a PC builder I own many desktop PCs as well. I am a father of five providing PCs, laptops, and tablets for all my family, most of which I have modified, rebuilt, or simply built from scratch. I do not own a cell phone, never have, never will.
It is pretty much standard procedure to reinstall your OS after changing out your system board for a different one. Why would you want all that old, useless system data to be cluttering up your system and causing potential BSOD errors? The short answer is YES it can be done but not in all cases. Even if you do manage to boot the old drive you would do well to reinstall the OS. You could try installing the OS to a fresh drive and then putting the old drive in a USB enclosure using Disk Management to drag and drop personal data back onto your newly installed OS — even right onto your desktop if you wish.

Usually while you're online Microsoft will find the activation key if the old drive is connected during installation. You simply hit the "activation button" and when it complains that it can't find a key you then click on the "resolve" option. I've done this many times and it has worked marvellously for me every time. After that you can proceed with what I mentioned in the above paragraph, putting the old drive in a USB enclosure and dragging and dropping all your most prized files into a folder you made on your desk top. Of course you will have to catch up on your updates and reinstall any apps or games etc. that you have grown fond of. I hope this helps.
To save time obviously. If one stays home all day, he can backup, format, reinstall Windows and all of his applications and games in 2-3 days. Remember we are talking about a typical HOME PC, not an office PC with 3-4 applications. If he, like most of us, goes at work and then he has to deal with kids and live his life, he has VERY limited free time, usually late at the evening, so he needs more than a full week, maybe two weeks to do it. No thanks, I would prefer to watch a movie or series with my wife at that time and sleep at a reasonable time, not too late, so I will avoid a clean installation at all costs. I would even use magic, if possible, to resurrect a dead disk. Besides, as I have already said in my previous post, it CAN be done and all you have to do is install drivers for the new hardware and activate your apps. The newer the Windows version, the less likely it is to see a BSOD. This was back in the Windows XP and Vista days. Even Windows 7 can tolerate moderate change in hardware because most drivers are built-in.
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (build 22631.4249) test laptop, Windows 11 Pro v24H2 (build 26100.3476) main PC
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v24H2 (build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
I have changed from B350, B450, B550 then X670 boards without reinstall.
All I do is remove everything in device manager then shut down and change the board.
 

My Computer

System One

  • OS
    Windows 11 Pro
Even larger change: I have moved my old Pentium 4 system (Windows 7 32-bit) to my current 3rd generation system. Too bad I had to reinstall anyway since it was 32-bit and I wanted 64-bit. I didn't know yet about the patchpae utility that can force Windows 32-bit to use up to 128GB RAM. "My recent knowledge, I wish I had you earlier", as we say in Greek.
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (build 22631.4249) test laptop, Windows 11 Pro v24H2 (build 26100.3476) main PC
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v24H2 (build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
If you have a computer with a few GB data and 3-5 applications, such as an average office PC, yes a clean installation is best. For a home PC with more than 1TB data and tens applications/games to install, no thanks, I would like to avoid that and spend this time in better ways.
Yes, and I'm in that camp, and why I prefer just to keep the drive as is. But there's also merit to a clean install.... no conflicting or lingering issues from the old build. Pro and con, why it's pertinent to mention both options.... and why I've done both ;-)
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 (Build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom built
    CPU
    Intel Core 9 Ultra
    Motherboard
    Gigabyte Aorus Z890 Xtreme AI Top
    Memory
    64G (4x16) DDR5 Corsair RGB Dominator Platinum (6400Mhz)
    Graphics Card(s)
    Radeon (XFX MERC 310) RX 7900XT
    Sound Card
    Onboard (ESS Sabre HiFi using Realtek drivers)
    Monitor(s) Displays
    27-inch Eizo Color Edge - CG2700X
    Screen Resolution
    3840 x 2160
    Hard Drives
    4 Samsung NVM 990 Pro drives: 1 X 1TB (OS) 2X TB, 1 X 1TB.
    PSU
    Seasonic TX-1300 (1300 Watts)
    Case
    Cooler Master H500M
    Cooling
    Corsair Link Titan 280 RX RGB
    Keyboard
    Logitech Craft
    Mouse
    Logitech MX Master 3
    Internet Speed
    1TB Download. 512mb Upload
    Browser
    Microsoft Edge Chromium
    Antivirus
    Windows Security
    Other Info
    System used for gaming, photography, music, school.
  • Operating System
    Windows 11 Pro 23H2 (Build 22631.4391)
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkPad X1 Carbon (Gen 12)
    CPU
    Intel Core Ultra 7 165U vPro® Processor
    Motherboard
    Vendor
    Memory
    32 GB LPDDR5X-6400MHz (Soldered)
    Graphics card(s)
    Intel Graphics
    Sound Card
    Onboard
    Monitor(s) Displays
    14" 2.8K OLED, Anti Reflection, Touch, HDR 500, 400 nits, 120Hz
    Screen Resolution
    2880 x 1800
    Hard Drives
    1 TB SSD M.2 2280 PCIe Gen4 Performance TLC Opal
    PSU
    Vendor
    Case
    Lenovo
    Cooling
    Vapor Chamber Cooling
    Mouse
    Touchpad: Haptic Touchpad
    Keyboard
    Backlit, Black with Fingerprint Reader and WWAN
    Internet Speed
    100MB
    Browser
    Edge Chromium
    Antivirus
    Windows Security
    Other Info
    202. Build Your Own laptop.
    vPro Certified Model: vPro Enterprise
I probably should have mentioned why I'm asking this.

I only built this PC in Feb. I was unlucky enough to buy an MSI x870 Mag Tomahawk motherboard, and whilst it's gorgeous, has lots of features and good pcie lane usage, it's bios is pants and waxh version solves one issue and delivers another. Right now the known faultnis from cold boot you have a 50/50 chance of a 5 fps slide show in windows or a silky smooth experience. Cannot be resolved without a reboot. Forums are full of these issuss. I've been trouble shooting since Feb and not enjoying my PC.

So my instanisnlretty new and clean. That said I know I'm going to clean install as I'm just that ocd person. But bi wanted to know how complicated using the existing os might be.

I very much appreciated one of the responses which suggested using magic. Made me spit my tea across the room laughing.

All new motherboard should come with a sachet of fresh magic. Just in case.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
To save time obviously. If one stays home all day, he can backup, format, reinstall Windows and all of his applications and games in 2-3 days. Remember we are talking about a typical HOME PC, not an office PC with 3-4 applications. If he, like most of us, goes at work and then he has to deal with kids and live his life, he has VERY limited free time, usually late at the evening, so he needs more than a full week, maybe two weeks to do it. No thanks, I would prefer to watch a movie or series with my wife at that time and sleep at a reasonable time, not too late, so I will avoid a clean installation at all costs. I would even use magic, if possible, to resurrect a dead disk. Besides, as I have already said in my previous post, it CAN be done and all you have to do is install drivers for the new hardware and activate your apps. The newer the Windows version, the less likely it is to see a BSOD. This was back in the Windows XP and Vista days. Even Windows 7 can tolerate moderate change in hardware because most drivers are built-in.
Indeed. User preference always takes precedence. There was a time when reinstalling an OS took a great deal of time. Today, with NVMe, faster memory and processing speeds an installation of Windows is fairly quick and painless. Like most of us, we don't have time to fiddle with fruitless registry edits, shooting in the dark, hunting for a fix online, running selective startup and going through each application to find that dead wood that turned out to be more defective than dead because it was never meant to run on that hardware in the first place. Who has time for that? Fortunately, today, especially with a newer OS, it is hardly uncommon to be able to install an operating system in less time than it takes to watch a movie with a loved one.

The typical HOME PC generally has a few applications, perhaps a game or two, pictures, music, and and not much more. Much of this is due to the fact that people do a great deal online and keep most of what they do online these days. So the typical home PC frequently has a lot of room on the drive. I should know this because I service them regularly. The exceptions to this are hard core gamers and folks who do content creation, videos etc. and generally they keep this on a separate drive which is a very wise thing to do. But these are the exceptions. The best way to resurrect a dead disc is to breathe some life into it. Getting rid of all the dead wood (before it catches fire) eliminating programs you'll never need or ever use, and simply starting fresh is often the right approach. The old drive can be kept for when one has some time on their hands to copy over their personal data to the new drive and can be re-used later as a storage drive. IF need be it can be kept in a cool, dark, dry place in case of emergencies even after personal data has been copied over to another drive.

In the case of replacing a system board with an entirely different one it really is advisable to install a fresh OS. When you are switching out a system board it's pretty much the same as switching over to a new PC. It may have the same CPU but it may not. It may have different RAM requirements. It will very likely require different drivers. Having too much "other" can result in driver conflicts and system errors. So ideally, it is advisable to run with a fresh install of the OS. Much has changed since the days of ye olde klunk drive, 4GB of memory, and slow CPUs. I will continue to stand by my advice and I truly hope it helps.
 

My Computer

System One

  • OS
    WIN 11, WIN 10, WIN 8.1, WIN 7 U, WIN 7 PRO, WIN 7 HOME (32 Bit), LINUX MINT
    Computer type
    PC/Desktop
    Manufacturer/Model
    DIY, ASUS, and DELL
    CPU
    Intel i7 6900K and i9-7960X / AMD 3800X (8 core)
    Motherboard
    ASUS X99E-WS USB 3.1 and ASUS X299 SAGE
    Memory
    128 GB CORSAIR DOMINATOR PLATINUM (B DIE)
    Graphics Card(s)
    NVIDIA 1070 and RTX 3070
    Sound Card
    Crystal Sound (onboard)
    Monitor(s) Displays
    single Samsung 30" 4K and 8" aux monitor
    Screen Resolution
    4K and something equally attrocious. I'll be working on this.
    Hard Drives
    A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W

    Ports X, Y, and Z are reserved for USB access and removable drives.

    Drive types consist of the following: Various mechanical hard drives bearing the brand names, Seagate, Toshiba, and Western Digital. Various NVMe drives bearing the brand names Kingston, Intel, Silicon Power, Crucial, Western Digital, and Team Group. Various SATA SSDs bearing various different brand names.

    RAID arrays included:

    LSI RAID 10 (WD Velociraptors) 1115.72 GB
    LSI RAID 10 (WD SSDS) 463.80 GB

    INTEL RAID 0 (KINGSTON HYPER X) System 447.14 GB
    INTEL RAID 1 TOSHIBA ENTERPRIZE class Data 2794.52 GB
    INTEL RAID 1 SEAGATE HYBRID 931.51 GB
    PSU
    SEVERAL. I prefer my Corsair Platinum HX1000i but I also like EVGA power supplies
    Case
    ThermalTake Level 10 GT (among others)
    Cooling
    Noctua is my favorite and I use it in my main. I also own various other coolers.
    Keyboard
    all kinds.
    Mouse
    all kinds
    Internet Speed
    360 mbps - 1 gbps (depending)
    Browser
    FIREFOX
    Antivirus
    KASPERSKY (no apologies)
    Other Info
    Gave Dell touch screen with Windows 11 to daughter and got me an OTVOC. Being a PC builder I own many desktop PCs as well. I am a father of five providing PCs, laptops, and tablets for all my family, most of which I have modified, rebuilt, or simply built from scratch. I do not own a cell phone, never have, never will.
"instanisnlretty"? What's that? Gamer talk? Typo? Spellcheck gone completely bonkers?
 

My Computers

System One System Two

  • OS
    Windows 11 26100.3025
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Amd Threadripper 7970X
    Motherboard
    Gigabyte TRX50 Aero D
    Memory
    128GB (4 X 32) G.Skill DDR5 6400 (RDIMM)
    Graphics Card(s)
    Gigabyte RTX 4090 OC
    Sound Card
    none (USB to speakers), Realtek
    Monitor(s) Displays
    Philips 27E1N8900 OLED
    Screen Resolution
    3840 X 2160 @ 60Hz
    Hard Drives
    Crucial T700 2TB M.2 NVME SSD
    WD 4TB Blue SATA SSD
    Seagate 18TB IronWolf Pro
    PSU
    BeQuiet! Straight Power 12 1500W
    Case
    Lian Li 011 Dynamic Evo XL
    Cooling
    SilverStone Technology XE360-TR5, with 3 Phanteks T30 fans
    Keyboard
    Logitech K120 (wired)
    Mouse
    Logitech M500s (wired)
    Internet Speed
    2000/300 Mbps (down/up)
  • Operating System
    windows 11 26100.3025
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Intel I9-13900K
    Motherboard
    Asus RoG Strix Z690-E
    Memory
    64GB G.Skill DDR5-6000
    Graphics card(s)
    Gigabyte RTX 3090 ti
    Sound Card
    built in Realtek
    Monitor(s) Displays
    Asus PA329C
    Screen Resolution
    3840 X 2160 @60Hz
    Hard Drives
    WDC SN850 1TB
    8TB Seagate Ironwolf
    4TB Seagate Ironwolf
    PSU
    eVGA SuperNOVA 1300 GT
    Case
    Lian Li 011 Dynamic Evo
    Cooling
    Corsair iCUE H150i ELITE CAPELLIX Liquid CPU Cooler
    Mouse
    Logitech M500s (wired)
    Keyboard
    Logitech K120 (wired)
Yeah, I couldn't make head or tales of what they're saying.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 (Build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom built
    CPU
    Intel Core 9 Ultra
    Motherboard
    Gigabyte Aorus Z890 Xtreme AI Top
    Memory
    64G (4x16) DDR5 Corsair RGB Dominator Platinum (6400Mhz)
    Graphics Card(s)
    Radeon (XFX MERC 310) RX 7900XT
    Sound Card
    Onboard (ESS Sabre HiFi using Realtek drivers)
    Monitor(s) Displays
    27-inch Eizo Color Edge - CG2700X
    Screen Resolution
    3840 x 2160
    Hard Drives
    4 Samsung NVM 990 Pro drives: 1 X 1TB (OS) 2X TB, 1 X 1TB.
    PSU
    Seasonic TX-1300 (1300 Watts)
    Case
    Cooler Master H500M
    Cooling
    Corsair Link Titan 280 RX RGB
    Keyboard
    Logitech Craft
    Mouse
    Logitech MX Master 3
    Internet Speed
    1TB Download. 512mb Upload
    Browser
    Microsoft Edge Chromium
    Antivirus
    Windows Security
    Other Info
    System used for gaming, photography, music, school.
  • Operating System
    Windows 11 Pro 23H2 (Build 22631.4391)
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkPad X1 Carbon (Gen 12)
    CPU
    Intel Core Ultra 7 165U vPro® Processor
    Motherboard
    Vendor
    Memory
    32 GB LPDDR5X-6400MHz (Soldered)
    Graphics card(s)
    Intel Graphics
    Sound Card
    Onboard
    Monitor(s) Displays
    14" 2.8K OLED, Anti Reflection, Touch, HDR 500, 400 nits, 120Hz
    Screen Resolution
    2880 x 1800
    Hard Drives
    1 TB SSD M.2 2280 PCIe Gen4 Performance TLC Opal
    PSU
    Vendor
    Case
    Lenovo
    Cooling
    Vapor Chamber Cooling
    Mouse
    Touchpad: Haptic Touchpad
    Keyboard
    Backlit, Black with Fingerprint Reader and WWAN
    Internet Speed
    100MB
    Browser
    Edge Chromium
    Antivirus
    Windows Security
    Other Info
    202. Build Your Own laptop.
    vPro Certified Model: vPro Enterprise
If you have time to devote, yes a clean installation is best. But for all of us without time or desire to do a clean installation, it is possible to just move the disk on a new system. "When you have to decide between two bad (unwanted, undesired) options, the less bad option is the best option" (Δυοῖν κακοῖν προκειμένοιν τὸ μὴ χεῖρον βέλτιστον), as Ancient Greeks say.
 
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My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (build 22631.4249) test laptop, Windows 11 Pro v24H2 (build 26100.3476) main PC
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v24H2 (build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
Last December I replaced the motherboards and CPUs with totally different ones on two computers. One computer has Windows 11 Pro while the other is dual-boot Windows 7 Home and Windows 10 Pro. They both have local accounts. All three copies of Windows activated OK without having to reinstall Windows.

The only problem I had was logging into Windows 7 after replacing the motherboard. Neither the USB mouse or keyboard worked. I then realized that the motherboard only had USB 3.0 ports. Windows 7 by default doesn't support USB 3.0. Fortunately, I was able to use the motherboard's single PS/2 port with a keyboard to continue with the login. I still didn't have a working mouse. After I installed the motherboard's USB 3.0 drivers I was able to use a USB keyboard and mouse again.
Computer Upgrades.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2
    Computer type
    Laptop
    Manufacturer/Model
    ASUS TUF Gaming A15 (2022)
    CPU
    AMD Ryzen 7 6800H with Radeon 680M GPU (486MB RAM)
    Memory
    Crucial DDR5-4800 (2400MHz) 32GB (2 x 16GB)
    Graphics Card(s)
    NVIDIA RTX 3060 Laptop (6GB RAM)
    Sound Card
    n/a
    Monitor(s) Displays
    15.6-inch
    Screen Resolution
    1920x1080 300Hz
    Hard Drives
    2 x Samsung 990 Evo Plus (2TB M.2 NVME SSD)
    PSU
    n/a
    Mouse
    Wireless Mouse M510
    Internet Speed
    2000Mbps/300Mbps
    Browser
    Firefox
    Antivirus
    Malwarebytes
  • Operating System
    Windows 11 Pro 24H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom build
    CPU
    AMD Ryzen 7 5700X3D
    Motherboard
    ASUS ROG Strix B550-F Gaming WiFi II
    Memory
    G.SKILL Flare X 32GB (2x16GB) DDR4
    Graphics card(s)
    ASUS ROG-STRIX-RTX3060TI-08G-V2-GAMING (RTX 3060-Ti, 8GB RAM)
    Monitor(s) Displays
    Samsung S23A300B (23-in LED)
    Screen Resolution
    1080p 60Hz
    Hard Drives
    2TB XPG SX8200 Pro (M2. PCIe SSD) || 2TB Intel 660P (M2. PCIe SSD)
    PSU
    Corsair RM750x (750 watts)
    Case
    Cooler Master MasterCase 5
    Cooling
    Scythe Mugen 6
    Mouse
    Logitech M310 (MK540 keyboard/mouse combo)
    Keyboard
    Logitech K520 (MK540 keyboard/mouse combo)
    Internet Speed
    2000 Mbps down / 300 Mbps up
    Browser
    Firefox, Edge, Chrome
    Antivirus
    Malwarebytes (Premium)
    Other Info
    ASUS Blu-ray Burner BW-16D1HT (SATA) || Western Digital Easystore 20TB USB 3.0 external hard drive used with Acronis True Image 2025 backup software || HP OfficeJet Pro 6975 Printer/Scanner
The point has been made.... do what works best for your situation. No need to debate every "what if" in the universe.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 (Build 26100.3476)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom built
    CPU
    Intel Core 9 Ultra
    Motherboard
    Gigabyte Aorus Z890 Xtreme AI Top
    Memory
    64G (4x16) DDR5 Corsair RGB Dominator Platinum (6400Mhz)
    Graphics Card(s)
    Radeon (XFX MERC 310) RX 7900XT
    Sound Card
    Onboard (ESS Sabre HiFi using Realtek drivers)
    Monitor(s) Displays
    27-inch Eizo Color Edge - CG2700X
    Screen Resolution
    3840 x 2160
    Hard Drives
    4 Samsung NVM 990 Pro drives: 1 X 1TB (OS) 2X TB, 1 X 1TB.
    PSU
    Seasonic TX-1300 (1300 Watts)
    Case
    Cooler Master H500M
    Cooling
    Corsair Link Titan 280 RX RGB
    Keyboard
    Logitech Craft
    Mouse
    Logitech MX Master 3
    Internet Speed
    1TB Download. 512mb Upload
    Browser
    Microsoft Edge Chromium
    Antivirus
    Windows Security
    Other Info
    System used for gaming, photography, music, school.
  • Operating System
    Windows 11 Pro 23H2 (Build 22631.4391)
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkPad X1 Carbon (Gen 12)
    CPU
    Intel Core Ultra 7 165U vPro® Processor
    Motherboard
    Vendor
    Memory
    32 GB LPDDR5X-6400MHz (Soldered)
    Graphics card(s)
    Intel Graphics
    Sound Card
    Onboard
    Monitor(s) Displays
    14" 2.8K OLED, Anti Reflection, Touch, HDR 500, 400 nits, 120Hz
    Screen Resolution
    2880 x 1800
    Hard Drives
    1 TB SSD M.2 2280 PCIe Gen4 Performance TLC Opal
    PSU
    Vendor
    Case
    Lenovo
    Cooling
    Vapor Chamber Cooling
    Mouse
    Touchpad: Haptic Touchpad
    Keyboard
    Backlit, Black with Fingerprint Reader and WWAN
    Internet Speed
    100MB
    Browser
    Edge Chromium
    Antivirus
    Windows Security
    Other Info
    202. Build Your Own laptop.
    vPro Certified Model: vPro Enterprise
"instanisnlretty"? What's that? Gamer talk? Typo? Spellcheck gone completely bonkers?
I have no excuse. I would like to claim its gamer talk but having read back my own post I was appalled at all the typos in there. When I type fast on my phone recently whole groups of words get joined together and somehow through the spellchecker.

The word 'instanisnlretty' (which I will work into my daily vocabulary more often) was supposed to be 'install is pretty' so the whole sentence was supposed to be 'So my install is pretty new and clean'

Anyhow the rest of he post is full of more of the same and I'm exhausted just correcting one of the lines. For all our sakes, save yourselves and ignore it.

I've decided to do a clean reinstall, as it just seems too much hassle not to.

Thank you for all the replies and efforts to read my poor prose.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built

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