As a computer technician, I regularly reinstall windows and yesterday I reformatted an hp laptop. I wanted to activate using SLP method so I checked string in bios this is what I found: i.imgur.com/PbJGZ.png This is the same thing that I got when i booted off the OEM BIOS BOOTABLE CD. So I downloaded the uncompressed HP / Compaq (OEMBIOS.CAT CRC32=CD4E1902) and put the 4 files in the uncompressed folder of the OEMBIOS Changer Tool. I ran the changer for XP Home System and there were no errors everything went as usual but when I restarted windows was still not activated. I tried to install security essentials and it failed validation. I went to the activation wizard and it was still asking me for activation. I have no idea what I did wrong could I have used another bios set? The one I used was the only one that the computer could use according to the bios checker. I dont know whats up.