I just installed SP2 on my WinXP Pro laptop and when I start it up boot will fail with the error, pci.sys missing or corrupt, run windows repair, etc. ...and it's true, C:\windows\system32\pci.sys isn't there anymore, however pci.sys is in the $NTServicePackUninstall$ directory left in C:\windows. Can I just copy that file back into system32 and that be enough to restore what the system is looking for?

It goes in windows/system32/drivers. Might work. Please post back within 24 hours or I will delete the post from my follow up list. Thanks.

Sorry, hit / instead of \. Please post back within 24 hours or I will delete the post from my follow up list. Thanks.

oops, looks like it's still there under drivers. hmmmmm, still need to restore it. Copying over seems un-wise, what do you think? My system won't boot off my XP pro CD, is there a floppy I can get to start the repair function? thanks

Did you set the bios to boot from the cd first? Then you hit enter within 5 seconds of when it asks you if you want to boot from the cd. Boot from the xp cd and go past the recovery console to the install menu. Select repair the existing installation. You won't lose any data except the xp updates. Unless you have a slipstream sp1 cd you will have to d/l sp1 and all subsequent updates. Be sure the firewall and A/V is active before going online as you will be susceptible to sasser and msblaster. If you don't want SP2 go to autopatcher.com and d/l SP1 and subsequent updates. Please post back within 24 hours or I will delete the post from my follow up list. Thanks.

Did you get this to work? I'm having the exact problem with my Vaio. The PC doesn't like the CD for some reason... I get to the Windows Setup Screen, but it's all blue... no option, no nothing. Gets past the "Press F2 for automated recovery", but then nothing.

Ok... I've always known that my laptop (Sony Vaio) has had problems with hibernating, though when I installed XP SP2, i tried it. When it woke up... well it didn't. It had the probelms as noted above. The way to fix this, was to remove each memory module, boot, then put the memory back in. I've read elsewhere that people say the memory is just plain BAD. Though I rna a memory check and evrerything is in working order after I just removed and put back in the module. Aparently even after removing the batteries, and power supply, the RAM is still monkeyed up. Everything works great now... Needless to say, no more hibernating.