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ZoeyAdams's avatar
ZoeyAdams
Iron Contributor
Aug 18, 2025
Solved

How can I force to install Windows 11 on unsupported PC?

I want to upgrade to Windows 11 from Windows 10 as I just received the news that it will be end of support soon. It is old DIY-PC but it is still a power horse. When I was trying to install Windows 1...
  • Fllloppow's avatar
    Fllloppow
    Aug 29, 2025

    Tried a couple of ways to get Windows 11 installed on my ThinkPad laptop (2014) but failed. If you don't want to waste time on this, then follow this guide instead:

    https://www.uuwinfox.com/force-to-install-windows-11

    It was shared by my friend and worked great for me!

Elondusk's avatar
Elondusk
Iron Contributor
Aug 18, 2025

Simply replace appraiserres.dll to install Windows 11 on unsupported hardware for unsupported PC and no TPM/Secure Boot.

Best for: Installing from an ISO directly

1. Download the Windows 11 ISO (Microsoft’s site).

2. Mount the ISO (double-click) or extract it.

3. Navigate to:

\sources\appraiserres.dll

4. Delete or rename this file.

5. Create a bootable USB with the modified files (using Rufus or Media Creation Tool).

Install Windows 11 on this unsupported PC and it won't check for TPM.

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