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Bris24's avatar
Bris24
Copper Contributor
Feb 06, 2026

Windows 11 on Unsported Harware Not Getting Updates

Hi, I trust someone can help.  I have unsupported hardware, no TPM or secure boot.  I used the Rufus method to update Windows 10 Pro to Win11 (24H2) in January 2025.  All worked well until fairly recently updates failed to install i.e. "Windows 11, version 24H2 (repair version) Failed to install on ‎14/‎01/‎2026 - 0xc1900200".

When I try to fix this I get the message that I have unsupported hardware.

I have just used the enablement package (KB5054156) and successfully updated from 24H2 to 25H2.  However when I check for latest updates this still fails and get the same message that my hardware is unsupported.

Can anyone suggest how I can solve this to successfully get updates.  Would doing an "in place" install using the Rufus method sort this problem i.e. reinstalling 25H2 over the existing 25H2?

All help gratefully received.

3 Replies

  • Bris24's avatar
    Bris24
    Copper Contributor

    Hi, Many thanks for replies.  Would modifying the registry help to solve this problem?  I have come across the method of adding LabConfig folder as follows bypass the TPM check:

    Navigate to HKEY_LOCAL_MACHINE\SYSTEM\Setup.

    Right-click on Setup and select New > Key.
    Name the key LabConfig.

    Right-click on LabConfig and select New > Dword (32-bit) value.
    Name it BypassTPMCheck.

    Double-click on the value and set it to 1.

    Apparently similar mods can be included to bypass the secure boot etc.

    Is there any risk doing this other than making a mistake with the modifications?

  • Samvan's avatar
    Samvan
    Iron Contributor

    You're experiencing a common issue with unsupported hardware running Windows 11, especially when it comes to receiving updates. Since your system lacks TPM and Secure Boot, Microsoft’s update mechanism detects it as unsupported, which blocks updates and certain features.

  • StephenBaker's avatar
    StephenBaker
    Iron Contributor

    Your system's hardware isn't officially supported for Windows 11, which causes update failures. While you've managed to upgrade using special packages, Windows Update still refuses to provide updates because it recognizes the hardware as unsupported. Doing an "in-place" reinstall with Rufus or similar tools might help, as it can sometimes reset hardware checks and allow updates to proceed smoothly.