System automatically secures itself unexpectedly.
System automatically secures itself unexpectedly.
Is the system running in safe mode? Have you checked for any malware?
It might have helped to clarify what "lock up" refers to (freeze, black screen, restart, etc). Please make sure to update the BIOS. Once completed, don’t alter anything unless prompted to save default optimized settings. After that, open Windows and check if the issue is resolved.
Windows just set up recently. It keeps locking the system. Pressing WIN+L doesn’t help. BIOS update didn’t resolve it. The fix seems to be with the power supply unit. PC works now without any problems. Appreciate your help!