windows xp service pack i

If you mean it boots and then shuts down after it gets to the desktop after
logging on, you need to make sure your antivirus is up to date and run a
virus scan. Also make sure your system is clear of any malware, download,
install and run Ad Aware:
www.lavasoftusa.com

If this is not the issue, when you post back, please give a more precise
description of the issue, any error messages that might occurs and exactly
where in the boot process it shuts down.

--
Michael Solomon MS-MVP
Windows Shell/User
Backup is a PC User's Best Friend
DTS-L.Org: http://www.dts-l.org/

"patti w." <anonymous@discussions.microsoft.com> wrote in message
news:21df01c47cd4$dd6c26a0$a601280a@phx.gbl...

>i have windows xp on my lap top. I downloaded the windows
> xp service pack 1. Now my computer boots on and the
> immediately shuts down then boots on again and shuts
> down. This continues until I shut it off. I have tried
> to reboot in safe mode, safe mode with commands, last
> configuration that worked, etc. What can I do other than
> reconfigure my hard drive.