Hang on Vista boot - appears to be at crcdisk.sys

[Guest]

The machine, running 32 bit Vista Home premium, was fine yesterday, today it
hangs at crcdisk.sys. No config changes, no intentionally installed
software. I tried to boot to safe mode, it hangs. I tried Vista install
disk "repair" option, which also hangs. Computer is passing hardware
diagnostics (disk, controller, memory...).
Looks like this is not a uncommon issue by looking at forums, but I'm not
seeing any common root cause explanations for the issue. Any suggestions for
cause and repair?

 

[John Barnes]

That is usually the last item loaded, and since the list shows the loaded
items, not the hang item, you appear to have loaded your drivers. You
should disconnect all hardware that is attached that you don't need to start
your computer and see if you can boot. Safe mode also loads minimum
drivers, so the fact you can't get into safe mode also mitigates against
drivers.

 

[Colin Barnhorst]

If you are wondering about crcdisk.sys showing as the last driver loaded in
Safe Mode, it is the last driver successfully loaded. If there is a next
driver failing to load it is not shown. In other words, the problem
wouldn't be with the last driver showing but the next one. Anyway, I think
that crcdisk.sys is the last one so the hang is probably while control is
passing to the next stage.