Re: HELP!!Mess with Windows XP SP2
I think that while windows will still run, you should back up all your crucial files and everything that is important to you to a cd/dvd. then just do a format and start over. when it gets this bad that usually is about all you can do. Also, you say that you were having popups, and such. this could be caused by spyware or adware by chance. SP2 is very likely to crash if this is on your system. I reccomend trying to do a format, then use windows update to get all updates other than sp2, and after that install sp2, then if that is successful reistall your files. and programs.
I also don't know where you heard that if you have a pirated copy of windows will crash your system when installing it, I don't think this is true.