:If you're facing persistent "non-genuine" notifications, some experts suggest clearing the Software Protection Platform cache by deleting the Tokens.dat file (backup first!). Summary Table: Tools by OS Version Operating System Recommended Diagnostic Tool Windows XP / Vista / 7 MGADiag.exe (Legacy) Windows 8 / 8.1 Licensingdiag.exe Windows 10 / 11 Activation Troubleshooter (Settings) Microsoft Genuine Advantage Diagnostics Tool
If you need to diagnose activation issues on a modern OS, stop using the MGA Diagnostic Tool and try these instead: :If you're facing persistent "non-genuine" notifications
: The tool (MGADiag.exe) is generally for Windows 7 or older. Running it on Windows 8, 10, or 11 will trigger the "unsupported OS" message. :If you're facing persistent "non-genuine" notifications