That's usually caused by a hardware problem, either bad RAM, bad hard drive,
or a weak PSU. It could also be a bad hard drive controller driver.

--
Kerry Brown
Microsoft MVP - Shell/User
http://www.vistahelp.ca


"Dasaecor" <Dasaecor@discussions.microsoft.com> wrote in message
news:BE4F1663-853C-4703-A519-97F5828C6E5C@microsoft.com...
> Hi,
>
> I'm manually installing Vista updates, since Windows Update will not
> update
> properly giving me an error 80073715...
>
> Problem is that every so often, 3 or 4 updates, the registry file gets
> corrupted and windows will not start, having to get back to a backup copy.
>
> Any ideas please?
>
> Thanks.