Restarting

-----Original Message-----
My computer keeps restarting itself just when every it
wants to . It just started this week . I thought it was
a
virus so I reformated hard drive . it did fine for a day
then started it again . Can anyone help and give me an
idea if it is a power suplly problem or mother board
etc. just need to fix Please help
.
Is automatically restart on errors checked?
Control panelsystemadvancedstartup and
recoverysettings,uncheck autorestart