I have the same problem: running W7 Pro 64 bit Kernel Version 6.1.7600.16617 on a desktop. It started a few days ago: W7 failed to shut-down and I had a report of a BSD [FONT="]1000009f[/FONT], although I had left the computer to shut down and did not see the BSD screen. I'm attaching the minidump. Since then W7 normally fails to shut down correctly, stalling at the shut-down and I have to power off manually. Next time I start I get the 'Windows failed to shut down correctly' message and offer to start in Safe Mode. Usually Windows will start o.k. in normal mode. The only thing that occurs is that it may relate to my e-SATA HDD which I use for backup. Normally the last thing I do before shut-down is run the backup program and then switch off the HDD. However, this has never given problems before. Any help would be enormously appreciated.