Hi Judy,
Difficult to say. First see if it is a software issue. Start/run
eventvwr.msc and check the system and application logs for clues. You can
also disable the system failure default setting to reboot, this will cause
it to give a blue screen error next time it happens. This error message can
be researched.
To disable this, access the startup and recovery settings on the advanced
tab of system properties in the control panel. Just uncheck the option to
restart on system failure. If this does not result in error messages, then
you may have an overheating problem. Random reboots are often a sign of
over-heating. Things you can do:
1) Open the case and make sure all fans are operating, especially the cpu
fan. While you're in there, get a can of compressed air and blow out the
dust bunnies.
2) Make sure the drive tower is well ventilated and not stuck in some
department store computer desk pc cabinet with only a little vent hole in
the back.
3) Visit a local pc shop and have them add an intake or exhaust fan. This is
not something you should do on your own unless you are familiar with the air
circulation pattern inside your machine. Adding a fan can be
counterproductive if not done correctly.
--
Best of Luck,
Rick Rogers aka "Nutcase" MS-MVP - Win9x
Windows isn't rocket science! That's my other hobby!
Associate Expert - WinXP - Expert Zone
judy said:
need to know why my pc shuts down out of blue then starts up again on it's
own