Hi,
I have also spent the whole of last night trying to fix a similair issue. My system is a fair new rig, with a fresh install of vista ultimate about a month ago. My system crashed and now when booting displays "Error loading OS". These are the steps I have made to try resolve the problem, but no luck yet.
1. Ensured all SATA connections are attached correctly.
2. Disconnected all other hard drives and left only OS HD connected
3. I can see the HD in BIOS setup screen
4. Booted up with BART Recovery disk to ensure HD still works. I can browse HD and see all the windows files.
5. Tried vista repair option in Windows Recovery Environment but OS not found
6. Tried all these commands from this article
http://support.microsoft.com/kb/927392 but because it does not even recognise that there is an OS install, nothing happens.
7. I suspect a recent vista update perhaps<?>
Any suggestions.
Thanks in advance.
Skully