Computer shut down during adobe pho...

there is a problem with your OS system file or with your adobe software.
you can try following options....

1. Go to Microsoft update and check whether your OS requires any updates or not.
2. Try to Uninstall completely Adobe Photoshop and reinstall again.
3. Use Easy cleaner OR System Mechanic OR WinXP Manager Software to keep your PC clean from junk files and registry also...