I did several tests and found that the latest version of Avast Endpoint Protection (setup_av_eps.exe) is the problem. After installation on Windows 8.1 64 bit, it crashes windows upon restart. I test it over and over and always got the same reaction. Eventually, after going back to a restore point and removing Avast, using avastclear.exe, I downloaded a trial version of Avast Premier and installed it. Up to now I can restart my PC without any problems.

Please advice.

Regards,

Nols Smit