How to Upgrade an Incompatible Windows 10 PC to Windows 11 For Free

How to Upgrade an “Incompatible” Windows 10 PC to Windows 11 for Free

If your PC doesn’t meet Microsoft’s official Windows 11 requirements (TPM 2.0, Secure Boot, newer CPU), you can still install Windows 11 at no cost. Follow these steps carefully.

1. Back Up Your Data

Before any OS upgrade, back up your files. Use File History, OneDrive, or an external drive.

2. Check Available Space

Windows 11 needs at least 64 GB of free disk space. Clear unused files or uninstall apps if needed.

3. Download the Windows 11 ISO

1. Go to Microsoft’s Windows 11 download page.
2. Under Download Windows 11 Disk Image (ISO), select Windows 11 and click Download.
3. Choose your language and click Confirm.

4. Create a Bootable USB Drive

1. Download Rufus (free tool) from rufus.ie.
2. Plug in a USB drive (8 GB+).
3. In Rufus:
   • Under Device, select your USB.
   • Under Boot selection, choose the Windows 11 ISO you downloaded.
   • Click Start and let Rufus format and copy files.

5. Bypass TPM and Secure Boot Checks

Windows 11 setup enforces TPM 2.0 and Secure Boot. You can override this with a simple registry tweak on the installation drive before setup:

1. Browse the USB drive’s sources folder.
2. Open the file named appraiserres.dll and rename it (e.g., append .bak).
3. Create a new text file in the sources folder named _appraiserres.dll (empty file).

Alternatively, during setup you can press Shift + F10 to open the command prompt and run:

textreg add HKLM\SYSTEM\Setup\LabConfig /v BypassTPMCheck /t REG_DWORD /d 1 /f
reg add HKLM\SYSTEM\Setup\LabConfig /v BypassSecureBootCheck /t REG_DWORD /d 1 /f

6. Run Windows 11 Setup

1. Boot from the USB drive or run setup.exe from File Explorer.
2. Choose Keep personal files and apps (if you want to preserve settings).
3. Follow on-screen prompts to install.

7. Post-Install Steps

• Install Windows updates.
• Update drivers from your PC maker’s website.
• Verify activation under Settings → System → Activation.

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Note: Bypassing checks may prevent future feature updates or official support. Proceed only if you accept these risks.