Ok, the other night my computer blue screened and would no longer boot up. Not sure why it blue screened, I and just started a search for a file and nothing else was running, so I assumed it was an overheating issue since I haven't cleaned the CPU heat sync in a while. Anyway, I tried to use "Last Known Good Configuration" without any luck. I then removed all hardware from the computer except the video card and one 512MB memory card. Then I tried Safe Mode and Safe Mode Command Prompt, but it died right after Mup.sys loaded. Now comes the wierd part, I boot to the Recovery Console using the XP Pro CD and it doesn't ask for the admin password, first clue something is terribly wrong. I tried to LOGON Administrator, but it told me there may be a registry problem. I then try to CD to the \WINDOWS directory, but it isn't there, second clue. Then I DIR and notice the C: is actually mapped to my D:, so I run MAP, my C and D are swapped, normally I have my 20GB partition as the C and my 56GB partition as drive D. BTW, both partitions are on the same 80GB HDD, with the 20GB partition being the boot. So, I try to DIR the D: (which is suppose to be the C: and the boot partition), but it failed, basically telling me the directory format is unrecognized. Ok, now I'm scared, so I run a chkdsk on both partitions and the C: passed, but the D: failed with unrecoverable errors. Now I'm really scared, so I run buy Norton System works, thinking the partition is damaged. Norton Recovery is not what it used to be, it just told me the directory format was unrecognized and wouldn't offer any solution! I had Norton replace the MBR, just in case there was a boot sector virus or something messed up, but that didn't help. When I try to boot to safe mode, I see the files being read from the normal boot partition \WINDOWS directory, so I know they are there. Does anyone know if there is some new security feature that encrypts the file allocation tables with SP2? I just installed it about 2 weeks ago before this crash. Does anyone have any advice for repairing it, I need some of the files on my original C:?