I use a 64 bit windows 8 laptop that had been working perfectly until recently. Now, when I try to restart, the computer starts the process, but then reaches a standstill and goes no further. It is as if the computer is hibernating/sleeping, but the bluetooth and wireless lights remain lit. All disc activity ceases (or nearly so). Restart happens with a minimal (safe) boot with all services and startup options loading, but if I add the "original boot configuration" it fails. I am reluctant to start all over with a reset, so I'm hoping expert advice can help identify the culprit. BTW, malwarebytes show no malware and ZoneAlarm is installed, but the problem occurs even without ZA. Occasionally on shutdown, I get the message "This app is preventing you from restarting." Of course, the app is unidentified, but if I cancel the process, nothing works unless I go to Task Manager. There, explorer.exe is "not responding." If it is restarted, most things work, but shutdown/restart still fails. I need a method to investigate, now that I've found no apparent problems with services or startups.