Have you ran any virus checks? spyware checking software?
iamthwee
Posting Expert
5,950 posts since Aug 2005
Reputation Points: 1,543
Solved Threads: 439
in general the main reasons why a laptop would shut itself down is either malware or possibly the overheating.
Overheating is caused by a failure with the fan or whatever internal cooling device your laptop may be using. The system shuts itself down to prevent any further damage.
If you have winxp first try a system restore to an earlier date. Then do another virus and spyware check.
iamthwee
Posting Expert
5,950 posts since Aug 2005
Reputation Points: 1,543
Solved Threads: 439