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Walterttor's avatar
Walterttor
Iron Contributor
Nov 05, 2025
Solved

My PC doesn't have TPM 2.0. How can I force install windows 11?

My Dell desktop PC runs Windows 10. When I downloaded the Windows 11 ISO and start the in-place upgrade, the Windows 11 setup program tell me: The PC must support TPM 2.0 TMP not detected Then I...
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  • Nobel_Baynes's avatar
    Nobel_Baynes
    Mar 18, 2026

    It is a very challenging job to add a compatible TPM 2.0 chip and you have to upgrade the processor as well. In fact, you can skip these system requirements with software tricks.

    This will help you run Windows 11 without TPM 2.0:

    https://www.devshowto.com/fix-windows-11-no-tpm-issue

    I helped me installed Windows 11 on on a HP laptop bought on 2015.

Eliasyuer's avatar
Eliasyuer
Iron Contributor
Nov 05, 2025

This is a manual, offline, and 100% safe method that works on nearly all older PCs that lack TPM 2.0 or use unsupported CPUs. You’ll create a modified Windows 11 setup using files from Windows 10 to remove the hardware checks.

🧰 What You Need

  1. A Windows 11 ISO file (you can get it from Microsoft’s official site).
  2. A Windows 10 ISO file (for extracting one key file).
  3. Around 8 GB free space on your PC.

Force Install Windows 11 If The PC Does not Have TPM 2.0

Step 1: Right-click the Windows 11 ISO → Mount (or extract it with 7-Zip). Copy all files from the mounted ISO to a folder, e.g.

Step 2:  Right-click the Windows 10 ISO → Mount. Navigate to the sources folder.

Step 3: Find and copy this file:

appraiserres.dll

Step 4: Go to your C:\Win11_Install\sources folder. Find and delete the existing appraiserres.dll file. Paste the appraiserres.dll you copied from the Windows 10 ISO.

This file disables TPM, CPU, and Secure Boot checks during setup.