Windows 7 Shutdown will not shutdown

[Nalim]

When I try to shutdown the computer using Win 7 ultimate it displays Shutdown in Progress but nothing happens even after 30 min wait. I have to shut it down using a power switch. On reboot in boots into Win 7 normally, like it was a regular shutdown. When I tried to run shutdown.exe /s /f /t 10 the response is "Shutting down in less than a minute" but again nothing happens and I have to use a power switch. I would appreciate your suggestion(s) how to fix it.

Thanks

 

[Mychal]

Have you tried this command:
shutdown -f -s -t 0

 

[Nalim]

Have you tried this command:
shutdown -f -s -t 0

Unfortunately, this did not work either. I will try to reinstall Windows.

 

[kemical]

This web page has a few suggestions:
http://www.thewindowsclub.com/windows-will-not-shut-down

If it doesn't help then post back.