system continually restarts windows xp

you know when you reboot your system, it's only windows that shuts down and then starts up again. this thing is actually powering off for a half a second and then powering back up again.  Like some laptops do when you reboot them. they go off completely for a few seconds and then come up again. this is like that only it's off for only a half a second.

I have changed mboards in an amd 2200 replaced cpu with 1800  same old ram same power suppy same everything.
after loading windows (and everything else)  it now will not shutdown, it will reboot.
I've changed p/s with 2 different new ones, I've changed cpu, I've changed ram, I've done a repair install.  It all started after I put in the last 27 windows updates, it may have been going on all the time, I only reboot while I was working on it.  It didn't have this problem before. I've restored to a system point,  NOTHING works.

Your help is seriously needed
thank you
dnloweAsked:
Who is Participating?

Improve company productivity with a Business Account.Sign Up

x
 
nobusConnect With a Mentor Commented:
best shutdown troubleshooter :   www.aumha.org/win5/a/shtdwnxp.php
0
 
FriarTukCommented:
turn off the wake on features in the bios,
pwr opt's:
hib - unchk hibernate
adv - powr button set to shutdown
0
 
nobusCommented:
or try running sfc /scannow from the run box
0
Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

 
nobusCommented:
probably the OS went flakey - can you install xp on another disk or partition, update it and test the issue?
0
 
dnloweAuthor Commented:
New report.  I just booted into safe mode and it shuts down properly   does this mean it's a driver issue??
0
 
dnloweAuthor Commented:
nobus

drivers drivers drivers, nothing sucks quite like a bad driver.
thanks for the redirection.
0
 
nobusCommented:
glad it helped !
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.