This tutorial contains detailed instructions on how to bypass the Windows cannot verify the digital signature error in Windows 10, 8. Vista. The computer runs Windows XP Home Edition. The computer runs Windows XP Professional and Simple File Sharing is enabled. You can check this by opening. Information about Windows XP, Vista, Windows 7 and 8 including tweaks, slipstreaming, install, registry, and forum for all Windows versions. The free scanner will identify main causes of your problem in its scan report. To eliminate them, you have to activate the licensed version of Reimage repair software.