Windows Update 6.0.5600.16385 Causing BIG probs

Had my Fujitsu pc set to auto update and Windows Update, it downloaded the
following this morning local time

"Windows Update software 6.0.5600.16385

Installation date: 25/09/2006 23:16

Installation status: Successful

Update type: Important"

Since this update my pc was unable to boot past my logon screen as it
rendered my usb keyboard and mouse unusbale. I wasnt even able to boot into
safe mode due to the keyboard not working after the bios screen. The only
thing ive been able to do is use the "Logmein" software ive got installed to
remote access the pc, get into System Restore and roll back to yesterday.

As a precaution ive stopped auto updates for now but dont really want to do
that as a total fix, any ideas aside from swopping usb sockets and using a
ps2 keyboard because ive done that with no effect to the issue