When that has happened to me, it has always led up to me buying a new hardrive. And at the least, doing a full system restore.
Bad Sectors perhaps.
Occasionally my XP halts booting up on the bootscreen (little moving bar thingy stops moving and just sits there) I have to turn off the PC and turn it back on again (not really dificult though tbh) it comes up with the list for safe mode etc... I select run up as normal and it loads properly the following time.
I've ran virus checks with a few virus checkers, rootkit checkers, checked both HD's for errors, defragged them and everything checks out as normal. I don't think I'll bother reinstalling XP or attempting to replace files (tried it in the past and really messed up so had to reinstall the lot!) as it only happens occasionally. Although in the past few days XP has been halting on powerdown too at the login prompt...
Vinia... Your issue is most likely driver related.Whatever the driver is, it's not initializing it's piece of hardware properly.The shutdown issue is a program getting stuck.If you post your issue and the info requested here in a new thread, I'll see what the issue is.
DANGIT!!! I couldn't save my HD and had to reformat it as we speak. i'm using my Lappy just so I can let you all know. Maybe WE can have some sort of "Stickied Tutorial of how we can take care of Our Computers" here. From Defragging it, to how to make a restore point as I never knew how to do such thing. I lost all Projects I had in there.