WIN XP auto restart

[Mo]

The system frequently auto reboots without warning. Even
after the entire hard disk drive has been replaced, the
problem persists. Anyone can help pls?

 

[Naba]

Mo,

When does your computer restarts? Does it restart before
Windows startup screen, after you are logged in?

You have the Blaster worm. Here is the removal procedure

http://securityresponse1.symantec.com/sarc/sarc.nsf/html/w3
2.blaster.worm.removal.tool.html

Make sure that you have the latest updates for XP also.

 

[Mike]

Check the Heat Sink / CPU Fan.

 

[Alex Nichol]

The system frequently auto reboots without warning. Even
after the entire hard disk drive has been replaced, the
problem persists

You have something that is crashing - and the system's 'automatically
restart' is cutting in. Turn this off: in Control Panel - System -
Advanced, click Settings in the Startup and Recovery section. There
uncheck 'automatically restart'. You can also usefully change the
'write debugging information' to (none) unless you are actively needing
a dump for debugging something, or to 'minidump' if you are getting
errors that you wish to report on to Microsoft. You may now get a Blue
screen failure instead, but at least will get some guidance as to what
is happening

that may indicate some consistent cause; if it does not, a hardware
problem or overheating is indicated