whenever i type cmd at the "Run" window i get a message window displaying that the computer will restart in 50 minutes and says to save all informations. can anybody help wht is causing this problem ?

Run a file check on the O/S.

If you have an XP CD:
Click START, RUN, type in:

sfc /purgecache

(This ensures that system files are copied from your Windows installation media, and files which may be infected with malware or are corrupted are not copied from your drive.)

Then type in:

sfc /scannow

Have your XP CD handy.


If you don't have an XP CD:
Click START, RUN, type in:

sfc /scannow