If it's an RPC Shutdown initiated by NT Authority, then it's most likely due
to the MSBlaster worm or the Welchia worm.
Have a look here for information about the Blaster worm and its variants:
http://www.microsoft.com/security/incident/blast.asp
And here is information about the Welchia worm:
http://tinyurl.com/kdp6
You need to d/load and install Security patch KB824146, available here:
http://support.microsoft.com/?kbid=824146#WinXP
Also, d/load and run the Blaster and Welchia worm removal tool:
http://support.microsoft.com/default.aspx?scid=833330
Regards,
--
Patti MacLeod
Microsoft MVP - Windows Shell/User
<(E-Mail Removed)> wrote in message
news:e76101c40bc2$c3aef2c0$(E-Mail Removed)...
> Question...
> Doing one know why your computer restarts in the middle
> of working on the internet..
> I have replace my hard drive....changed my operating
> system and had memory added to work with my high speed
> and Xp connections...
> Please help