1. You would need to download Windows 11 ISO. If you cant download it from the Microsoft Official website then get creative and google how to download Windows 11 ISO. 2. Download and extract TPM error fix zip file (attached file) 3. Copy all content from the Windows 11 ISO to a new folder. 4. Copy and replace the appraiserres.dll from the extracted TPM error fix zip file to the sources folder. 5. Once done. Run the setup.exe to install Windows 11.