XP countdown and restart

It have sevaeral reason to make XP countdown and restart.

ok, I check from event log what happend

Problem from RPC, here
The Remote Procedure Call (RPC) service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 60000 milliseconds: Reboot the machine.

:D by Default, When RPC have cause, XP will restart. So we just ignore or do nothing when the events happen

ok, let's go this solution, please also check http://kb.wisc.edu/helpdesk/page.php?id=2048

1. Right-click the My Computer icon on the Windows desktop or in the Start menu.
2. Select Manage. The Computer Management window will open.
3. In the left pane, double-click on Services and Applications.
4. Select Services and a list of services should appear.
5. In the right pane, locate the Remote Procedure Call (RPC) service, it will have a Status of "Started". Note: This will be the first in a listing of two Remote Procedure Call (RPS) services.
6. Right-click on the first Remote Procedure Call (RPC) service listed.
7. Select Properties.
8. Select the Recovery tab.
9. Using the drop-down lists, change First failure, Second failure, and Subsequent failures from Restart the Computer to Take No Action.
10. Click on Apply and then OK.

I have try it. After that, XP gone.... Ooop! problem gone. :D