If you are already running an older version of Windows and want to upgrade without losing files, use a registry hack before running the setup.
: Right-click, select New > DWORD (32-bit) Value . Name it : AllowUpgradesWithUnsupportedTPMOrCPU Set Value : Double-click it and set the Value data to 1 .
: Press Win + R , type regedit , and hit Enter. Navigate to : HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup Windows 11 Pro 22H2 Build 22621.1105 (No TPM Re...
: Run the script again after the upgrade to "uninstall" the bypass and restore default update behavior. Key Considerations for Build 22621.1105
: Execute the script once to "install" the bypass. If you are already running an older version
: Boot from the USB and proceed with the installation as normal. Method 2: In-Place Upgrade via Registry Bypass
For a more automated upgrade, you can use the community-vetted Skip_TPM_Check_on_Dynamic_Update.cmd script. : Press Win + R , type regedit , and hit Enter
: Get the official 22H2 ISO from the Microsoft Software Download page . Configure Rufus : Insert a USB drive (8GB+). Select your Windows 11 ISO in Rufus. Click Start . A "Windows User Experience" popup will appear. Apply Bypasses : Check the boxes for: Remove requirement for 4GB+ RAM, Secure Boot and TPM 2.0 .