After installing SP2 on my computer, it kept getting to the BsoD and wont boot up even in safe mode so i attempted to repair Xp using the recovery console and repaired it all the way up the the part where you have to enter your Key. My windows came preinstalled with my computer so i dont have an original disk, but we have a slipstreamed disk of XP home edition (which i have installed) with SP2. I have the cd-key on the back of my computer but everytime i entered it it says that my key is invalid. Ive entered the right key ive quadruple checked, but i dont know whats wrong. Any ideas?