Resetting the Computer
You may have to reset (reboot) your computer on some occasions when an error occurs and the program you are using hangs up.
If the computer operation seems to hang up, first wait. It is possible that the computer is processing data. Periodically check the hard disk drive
Reset the computer by any one of these methods:
zPress Ctrl+Alt+Del on the keyboard.
zIf the above action does not work, press and hold the power button for more than 5 seconds to force the system to turn off. Then turn on the power again.
CAUTION: Resetting will cause any unsaved data to be lost.
Troubleshooting