unable to find the incompatible driver(s) preventing core integrity


huntblatz

huntblatz

Member
Local time
10:41 PM
Posts
1
OS
Windows 11 Pro
Hello All,

When I try to enable core isolation, I am notified that I have an incompatible driver, however, unlike some other posts I have seen, when I click on "Review incompatible drivers," there is nothing on the list. When I first installed Windows 11 Pro, Core Isolation was on. Some time in 2021, it stopped.

Is there a site or service where I can upload my driver list and have it checked against compatible drivers so I can isolate and manually remove the offender(s)?

I am jumping to this line of inquiry because it worked before; I've ensured Windows Virtual Machine and and Windows Hypervisor Platform are enabled, and tried setting Core Integrity to "on" using a security policy. I've also set the installed and unused drivers to be "visible" in the Device Manager and turned on the "Show Hidden Devices." Just to be clear about my technical abilities, I believe I am pretty much a neophyte to what's happening under the hood.

Does anyone have any thoughts?
 
Windows Build/Version
Windows 11 Pro 22H2 / 22623.746

Attachments

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 convertible 15bl1XX
    CPU
    Intel® Core™ i7-8550U (1.8 GHz, 8 MB cache)
    Motherboard
    HP 827F (U3E1)
    Memory
    16 GB DDR4-2400 SDRAM (2 x 8 GB) 1.2 GHz
    Graphics Card(s)
    Intel UHD Graphics 620, and NVIDIA GeForce MX150
    Sound Card
    Realtek High Definition Audio(SST), and NVIDIA Virtual Audio Device (Wave Extensible) (WDM)
    Monitor(s) Displays
    15.6" diagonal UHD UWVA eDP BrightView WLED-backlit touchscreen (3840 x 2160)
    Screen Resolution
    1536 x 864 pixels
    Hard Drives
    1 TB PCIe® NVMe™ M.2 SSD [KXG50ZNV1T02 TOSHIBA (SSD) 953 GB]
    PSU
    6-cell, 79.2 Whr Lithium-ion Battery
    Keyboard
    Full-size island-style backlit keyboard
    Internet Speed
    300 Mbps download, 23 Mbps upload
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender
Download the Device Guard and Credential Guard hardware readiness tool.

Code: 
 .\DG_Readiness_Tool_v3.6.ps1 -capable -hvci
###########################################################################
Readiness Tool Version 3.4 Release.
Tool to check if your device is capable to run Device Guard and Credential Guard.
###########################################################################
###########################################################################
OS and Hardware requirements for enabling Device Guard and Credential Guard
 1. OS SKUs: Available only on these OS Skus - Enterprise, Server, Education, Enterprise IoT, Pro, and Home
 2. Hardware: Recent hardware that supports virtualization extension with SLAT
To learn more please visit: https://aka.ms/dgwhcr
###########################################################################

Checking if the device is DG/CG Capable
 ====================== Step 1 Driver Compat ======================
Driver verifier already enabled
Verifying each module please wait ....
Completed scan. List of Compatible Modules can be found at C:\DGLogs\DeviceGuardCheckLog.txt
No Incompatible Drivers found
 ====================== Step 2 Secure boot present ======================
Secure Boot is absent / not enabled.
If Secure Boot is supported on the system, enable Secure Boot in the BIOS and run the script again.
 ====================== Step 3 OS Architecture ======================
64 bit arch.....
 ====================== Step 4 Supported OS SKU ======================
This PC edition is Supported for DeviceGuard
 ====================== Step 5 Virtualization Firmware ======================
Virtualization firmware check passed
 ====================== Step 6 NX Protector ======================
NX Protector is available
 ====================== Step 7 SMM Mitigation ======================
SMM Mitigation is available
 ====================== End Check ======================
 ====================== Summary ======================
Machine is not Device Guard / Credential Guard compatible because of the following:
Secure boot validation failed.
 

My Computer

System One

  • OS
    Windows 7
Hello and welcome to the forum. Third party drivers that prevent core isolation do not have to be for devices you have installed, only that the drivers exist in Windows driver folders. Have you uninstalled devices that you didn't remove the drivers for because you have many that would be suspect to me going all the way back to 2006. As well, quite a few of them are not commonly known companies who maintain their drivers.

The first thing I would do is go to Intel and run its driver and support assist tool to get all your Intel stuff up to date. Then run Windows update and install any listed under optional updates to see if it can update some of the others. Take what is left using a new list and try to use process of elimination. If you recognize any for hardware you no longer have, get rid of them.

In your case , if windows won't tell you exactly what is preventing core isolation, you may have to run without it. There are entirely too many that could be the problem.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 26100.3775
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1tb Solidigm m.2 nvme+256gb SKHynix m.2 nvme /External drives 512gb Samsung m.2 sata+1tb Kingston m2.nvme+ 4gb Solidigm nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 22H2 19045.3930
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
If Windows doesn't want to tell you which drivers are causing problems, you may need to update all drivers listed in Device Manager.
You may also need to update installed programs that add themselves in Services. That's what I did to enable Core Isolation.
 

My Computer

System One

  • OS
    Windows 11
@garlin Thanks for mentioning that tool. I was not aware of it.

If his tool doesn't help you narrow this down, you'll have to dig into your drivers.
I took your list and highlighted several drivers for you to look into. I uploaded it to onedrive. drivers.docx
I cannot say these are the driver(s) preventing core isolation, only that they are very old and you have to start somewhere..

I also went to HP for your device. They're not doing too good getting updated drivers on their site. Hope this might help you narrow things down.
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 26100.3775
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1tb Solidigm m.2 nvme+256gb SKHynix m.2 nvme /External drives 512gb Samsung m.2 sata+1tb Kingston m2.nvme+ 4gb Solidigm nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 22H2 19045.3930
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
This also applies to W11. Click on attached file.
 

Attachments

  • core.GIF
    core.GIF
    19.9 KB · Views: 11

My Computers

System One System Two

  • OS
    W11 Home 24H2 Insider Preview.
    Computer type
    Laptop
    Manufacturer/Model
    Microsoft Surface Pro 11 Snapdragon X Elite
    CPU
    Snapdragon X Elite
    Memory
    16GB
  • Operating System
    W11 PRO 24H2 Preview
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro
    CPU
    Intel i5 - 12400
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