Hi all, This morning I woke up to find my secondary PC with the following BSOD: STOP 0x0000007F (0x0000000D, 0x00000000, 0x00000000). This normally indicates a hardware failure of some sort. This is somewhat strange, as this is fairly new build - new motherboard, proc and RAM with repurposed drives from a previous build. Although I can no longer get into the OS (even via Safe Mode), I was able to salvage the dumpfiles and run an analysis on a few of them. The results are very strange: STACK_COMMAND: kb FOLLOWUP_IP: dbgmsg9x+d12 9974cd12 cd20 int 20h SYMBOL_STACK_INDEX: 1 SYMBOL_NAME: dbgmsg9x+d12 FOLLOWUP_NAME: MachineOwner MODULE_NAME: dbgmsg9x IMAGE_NAME: dbgmsg9x.sys DEBUG_FLR_IMAGE_TIMESTAMP: 3be90f45 FAILURE_BUCKET_ID: 0x7f_d_dbgmsg9x+d12 BUCKET_ID: OLD_IMAGE_dbgmsg9x.sys I've done a search on the filename in question, and the Google results are very cryptic. I can't figure out what this file is, or why it would even be on my system. It doesn't seem to be part of the core Vista OS. Has anyone ever heard of this filename? I feel fairly confident that there's not a hardware problem, and I'm pretty close to just doing an OS reimage. But I thought I'd run this by you all to get your opinions. I'm attaching a couple of the dumpfiles for those who wish to take a look at them. I've also done the following troubleshooting: -- uninstalled all drivers -- run chkdsk (no problems) -- run Memtest86+ for several hours (no problems) One other point of note: earlier in the day, I was able to get into the OS via Safe Mode (this was when I was able to retrieve the dumpfiles). After running chkdsk, I am no longer able to get in. I ran chkdsk again, and it found no problems, but it now BSODs as soon as I get to the Vista login screen. Booting to Safe Mode just hangs (with the HDD thrashing) after crcdisk.sys loads. System config here: http://www.anandtech.com/mysystemrig.aspx?rigid=35120 Any thoughts on this? Thanks in advance.