Original title:XP Service Pack 3 upgrade errors
I downloaded XP SP3 from the website but now my computer won't work. I keep getting a blue screen that says 'Windows has been shut down to prevent damage to your computer' because 'an attempt was made to execute non-executable memory.' It then tells me to go to Safe Mode to uninstall the software that's causing the problem, but when I do that I get a blue screen again telling me to 'Check to make sure you've got adequate disk space.' Any ideas?