Radfaldo

Excellent bit of advice, many thanks. I'd just built a Dell Vostro 1500 after a disk fail, with Vista Business, installed all the drivers, patched with all the Microsoft latest patches (65 to date) and blue screened on reboot. Tried ERD etc, but doesn't see any disk partitions or anything, so rebuilt again, this time used the drivers rfom Dell website instead of Resource CD, patched and it crashed again. This time I made a few adjustments in BIOS and changed to ATA instead of AHCI, and rebuilt again, this time installed approx 40 patches thinking the latest patches were the ones that caused the crash, but I was wrong, on reboot it BSOD'd again. This time it didn't automatically reboot as I'd disabled the Automatic reboot on error, so I could see the error message, it looked like Memory address errors, so I ripped one stick of memory out, installed another and it booted fine. Rebooted to test and it crashed again. I realised that it was reboot it didn't like, Shutdown, then powering on worked fine. When I read the above post about removing KB943899 I thought I'd give it a go, and it works like a dream. I can restart, shutdown, hibernate the lot! Muchos Gracias Amigo. The system now has all Microsoft atches and I've hidden KB943899