I assume it's a virus, but I couldn't find about it on the web. My windows started to (I don't know what I did, or which program I've installed) restart every day at 12:13:14 AM. I have no idea what causes it. It has began one day. I couldn't find a task in the task scheduler that triggers at that particular time. thanks in advance
Event Viewer of Windows.
Windows Logs > System
This can help you guessing which application causes restart. Something like:
The process C:\WINDOWS\system32\shutdown.exe (PCNAME-PC) has initiated the restart of computer PCNAME-PC on behalf of user NT AUTHORITY\NETWORK SERVICE for the following reason: No title for this reason could be found Reason Code: 0x800000ff Shutdown Type: restart Comment: