It's hard to say without knowing the operating system or the computer
model. You could begin with the Startup and Shutdown troubleshooter in
Windows help.
This page may help  also:WINDOWS SHUTDOWN & RESTART CENTER
TROUBLESHOOTING in 15 STEPS  http://aumha.org/win4/a/shutdown.php


Donna Kensa wrote:
> When I need to restart the computer for whatever reason it will not restart.  I have to go to Turn Off and then start the computer

again as if I had never started it up.  Any ideas why?
>
> Thank you.
>
> Donna
>
>                The NOSPIN Group Promotions is now offering
>                  our special coffee mugs and mouse pads
>               with the PCBUILD logo...  at a great price!!!
>              http://freepctech.com/goodies/promotions.shtml
>
>

        The NOSPIN Group has added a new feature on our website,
           web based bulletinboard for questions and answers:
              Visit our sister website at http://nospin.com