TPM and Windows 11 Reinstallation


bep1995

Well-known member
Local time
10:49 AM
Posts
46
OS
Windows 11
Hello guys !!!!

I want to ask something. I have a custom desktop pc with the gigabyte b550 aorus elite v2. I have created some passkeys, including of course the passkey for the windows hello pin.
My question is, what if I reinstalled windows ?? Does the reinstallation clears the tpm or not ??
If it doesn't, will the passkeys work correctly after (including the windows hello pin) ??
Or I have to delete them and recreated them again ??

Does it matter if I had a branded pc or a laptop or if I had a hardware tpm and not a software tpm (ftpm) ??
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Self Build
    CPU
    AMD Ryzen 5 3600
    Motherboard
    Gigabyte B550 Aorus Elite V2
    Memory
    Kingston HyperX Fury 2x8GB@3200mhz CL16
    Graphics Card(s)
    Sapphire Pulse RX 550 4GB
    Monitor(s) Displays
    LG L194WT
    Screen Resolution
    1440 x 900
    Hard Drives
    Kingston A2000 Nvme 1.0TB
    PSU
    Seasonic Focus GX-650
    Cooling
    Arctic Freezer A13x
When you clean install Windows all your settings will be deleted including PIN or password.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Pavilion
    CPU
    AMD Ryzen 7 5700G
    Motherboard
    Erica6
    Memory
    Micron Technology DDR4-3200 16GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3060
    Sound Card
    Realtek ALC671
    Monitor(s) Displays
    Samsung SyncMaster U28E590
    Screen Resolution
    3840 x 2160
    Hard Drives
    SAMSUNG MZVLQ1T0HALB-000H1
When you clean install Windows all your settings will be deleted including PIN or password.
I understand that, there will no passkeys showing in the windows 11 settings. But does reinstallation it clears the tpm, or I need to do that after ?? Or it doesn't matter ??
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Self Build
    CPU
    AMD Ryzen 5 3600
    Motherboard
    Gigabyte B550 Aorus Elite V2
    Memory
    Kingston HyperX Fury 2x8GB@3200mhz CL16
    Graphics Card(s)
    Sapphire Pulse RX 550 4GB
    Monitor(s) Displays
    LG L194WT
    Screen Resolution
    1440 x 900
    Hard Drives
    Kingston A2000 Nvme 1.0TB
    PSU
    Seasonic Focus GX-650
    Cooling
    Arctic Freezer A13x
You only clear TPM erases encryption keys and security data, like wiping a clean slate. Only do it if you're selling your computer or troubleshooting TPM issues.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Pavilion
    CPU
    AMD Ryzen 7 5700G
    Motherboard
    Erica6
    Memory
    Micron Technology DDR4-3200 16GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3060
    Sound Card
    Realtek ALC671
    Monitor(s) Displays
    Samsung SyncMaster U28E590
    Screen Resolution
    3840 x 2160
    Hard Drives
    SAMSUNG MZVLQ1T0HALB-000H1
Hello guys !!!!

I want to ask something. I have a custom desktop pc with the gigabyte b550 aorus elite v2. I have created some passkeys, including of course the passkey for the windows hello pin.
My question is, what if I reinstalled windows ?? Does the reinstallation clears the tpm or not ??
If it doesn't, will the passkeys work correctly after (including the windows hello pin) ??
Or I have to delete them and recreated them again ??

Does it matter if I had a branded pc or a laptop or if I had a hardware tpm and not a software tpm (ftpm) ??
A passkey is not a password. A passkey is a unique fingerprint on your device that authenticates it - yourself. Think of it as as two puzzle pieces. You have the website as one puzzle piece, and the passkey is the piece it connects to. However, unlike passwords, the passkey isn't stored on the website/company itself. So there is nothing to steal.

Anytime you move to a new device, or reset it, you reset up the passkey using another device to authenticate. This is not as daunting as it sounds. Usually, you just authenticate with your phone for example and a new passkey will be auto created for you for that device.

If the passkey is backed up to your microsoft account, you reauthenticate with windows hello and it signs you in. Or it senses your phone nearby to make sure it's really you.

Passkeys are still new and still being actively developed and worked on. But in general it works by authenticating you, by your face or biometrics. And by detecting the devices around you to make sure you are who you say you are.

Resetting the passkey is similar to resetting a password, but using your devices you own to authenticate you.

If you only owned a phone and reset it, you would prove you are who you said you are by going through prompts you normally would depending on the service....verifying a phone number, code sent to email, an old password etc. But once signed in to google or apple (or a password manager), your passkeys would sync and you can log into everything you did before.

The main goal of passkeys is to be more secure from data breaches as well as making it simpler for users to sign in vs passwords.

This explains it better than I can:

 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Built
    CPU
    Ryzen 7 5700 X3D
    Motherboard
    MSI MPG B550 GAMING PLUS
    Memory
    64 GB DDR4 3600mhz Gskill Ripjaws V
    Graphics Card(s)
    RTX 4070 Super , 12GB VRAM Asus EVO Overclock
    Monitor(s) Displays
    Gigabyte M27Q (rev. 2.0) 2560 x 1440 @ 170hz HDR
    Hard Drives
    2TB Samsung nvme ssd
    2TB XPG nvme ssd
    PSU
    CORSAIR RMx SHIFT Series™ RM750x 80 PLUS Gold Fully Modular ATX Power Supply
    Case
    CORSAIR 3500X ARGB Mid-Tower ATX PC Case – Black
    Cooling
    ID-COOLING FROSTFLOW X 240 CPU Water Cooler
    Internet Speed
    900mbps DOWN, 100mbps UP
  • Operating System
    Chrome OS
    Computer type
    Laptop
    Manufacturer/Model
    HP Chromebook
    CPU
    Intel Pentium Quad Core
    Memory
    4GB LPDDR4
    Monitor(s) Displays
    14 Inch HD SVA anti glare micro edge display
    Hard Drives
    64 GB emmc

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