أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
To give you a good answer you need to answer this things:
- Is it your own computer?
- Is it a company computer?
- Does this computer connected to a Domain?
Answers for your prblem.
- If this is your own computer the problem maybe on the OS “Operating System” or a Virus on your system
- If this is a company computer without Domain the problem maybe on the OS “Operating System” or Virus on the system.
- If this is a company computer connected to a Domain its possible your Administrator set a Group Policy that once your log on to a computer you could not restart your system unless you log out. Or if the computer has been idle for a certain time the computer will restart. This is for security purposes or computer maintenance. If this is not the reason then go back to OS problem and Virus problem.
Hope I helped.
Possible problem software issue, after restart try to observe.