Navigate to your local AppData folder (press Win + R , type %localappdata%\Microsoft\Office , and press Enter).
I can provide a tailored registry cleaning script or recommend activation troubleshooting steps exactly suited to your setup. office201624c2riso160 1732820162x64rp fix
Sometimes, remnants of a 32-bit installation prevent the x64 version from updating. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\16.0 and ensure there aren't conflicting "Common\InstallRoot" paths. Navigate to your local AppData folder (press Win