How can I upgrade from Windows 10 to 11 for free?

How to upgrade from Windows 10 to 11? You can perform an in-place upgrade by manually modifying the system.

1. Check Compatibility
Ensure your PC meets Windows 11 requirements, especially TPM 2.0 and Secure Boot. You can verify these manually or with tools like the PC Health Check.

2. Create a Windows 11 Upgrade Files Environment
Download the Windows 11 ISO from Microsoft (if you haven't already), and extract its contents manually.
Alternatively, you can copy the Windows 11 files from a mounted ISO.

3. Replace System Files or Use Setup Files
You might attempt to run the setup.exe from the extracted ISO files directly from Windows 10, which can initiate an in-place upgrade.
This approach effectively upgrade from Windows 10 to 11 without using the official assistant or media creation tools.

4. Modify Registry
Some users modify registry keys to bypass compatibility checks. This is risky and can cause system instability.
Example: Disable the TPM and Secure Boot checks by editing registry keys under:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\UI\Eligibility

or related keys that check hardware compatibility.