Hi there! Hope to find some advice with my computer issue. I have Dell xps 410 with Windows XP home edition sp3. 2G of Ram (2 sticks); Processor Intel,6400,2.13, Dual Core Bios v. 2.5.3 I used to have many BSODs in past 6 month, mostly 0x50, sometimes with reference to win32k.sys. They usually occured when i attempted any type of scanning (for viruses, doing registry backup, etc). Otherwise computer worked fine, so i just didn't scan and everything was ok. Couple of days ago i heard weird ticking, and the front green light was flashing. So i decided to restart, and it gave me the 0x7b blue screen after the xp logo. i tried multiple times and i got computer to load my wallpaper, start panel, but then it got stuck loading my antivirus (AVG) and said about some error in c/windows/system32/drivers. I managed to boot in the save mode and deleted AVG and some other programs. i tried to run chkdsk /f but it would tell me it can't lock current drive, the volume is in use by another process. I then tried running SFC/scannow but it would give me error as well and say that RPC server was unavailable. I managed to boot normally and installed the Eset internet security. It was working fine for couple of hours, but then gave me bsod when i attempted scanning. I scheduled to run chkdsk on next reboot, and it finally did, said it fixed couple of bad sectors and announced disk C clean, but it still won't boot! My safe mode boot is getting stuck at mup.sys and won't go pass it. I've read tonnes of forums and advices. I cleaned my PC from dust, then i took out one RAM stick at a time to see if they might be faulty. After i started comp with one RAM, it almost immediately gave me BSOD with 0x24. The same one i'm getting right after safe mode reaches mup.sys. I ran the diagnostics from the "boot from utility partition" option in my boot menu. Everything was fine, except for it couldn't perform read test on my hard drive, gave an error 0f00:0232 timeout waiting for IRQ. I can't even boot from the Windows installation CD to run the recovery console. It would reach the "setup is starting windows" and then flash me with 0x7b BSOD. When i press F6 during the process to install extra drivers, it then would say that it didn't find any mass storage devices to install support for. I don't know what to do now. I can't afford the new hard drive, which might not be the issue at all. I also can't post minidumps because my system doesn't create any for some reason. It does it occasionally, but the ones i have are pretty old and most likely irrelevant. I'm currently running from usb Ubuntu, and it sees my hard drive ok. I also ran couple of virus scans from ubuntu, and no viruses found. I would appreciate any help!