Here's the problem.... I downloaded an official WindowsXP patch from Microsoft over a week ago. I may have picked the wrong patch to install, as since the patch, I ocassionally get a little Yellow Warning Icon w/Exlamation Point in my task tray. It must be an icon warning me of low memory, because the computer tends to freeze up for moments (then resume) and sometimes just dump memory. I also get a notice on my screen that critical XP files have been replaced with corrupt ones and will cause instability in system operations. The notice prompts me to put my WindowsXP disc in my drive to replace the BAD files with GOOD ones. Inserting the WindowsXP disc upon this prompt does nothing. I have two choices here.... 1. Completely reformat my drive and start a fresh install. -or- 2. Somehow replace the damaged files that are causing my system to become unstable. How do I attempt Step #2? I tried booting up with my WindowsXP disc, but there is no FIX option anywhere to be found. I can either do a system recovery (which doesn't sound like what I need to do) or a completely new install with format. Anyone know how I can simply reinstall the damaged files (I have no idea which ones) while retaining my current WindowsXP configuration? Thanks in advance for the advice.