Windows doesn´t update

My Windows Vista is 64bits. I believe Anti-Virus deleted some important files
from Windows Update (and I don´t know what they are). I´ve tryed run Windows
Update and "80070424 Code" always appears. The solutions posted by Discussion
Group didn´t do any effect. I think I need reinstall Windows Update or repair
it. But these aren´t possible, are they?
I´m afraid I´ll format the PC just because Windows Update fails.

See replies to the second post you made an hour later. (One would have been
sufficient).

Pedro wrote:
> My Windows Vista is 64bits. I believe Anti-Virus deleted some important
> files from Windows Update (and I don´t know what they are). I´ve tryed run
> Windows Update and "80070424 Code" always appears. The solutions posted by
> Discussion Group didn´t do any effect. I think I need reinstall Windows
> Update or repair it. But these aren´t possible, are they?
> I´m afraid I´ll format the PC just because Windows Update fails.

i,m getting all ? and don,t know what they mean
"Pedro" wrote:

> My Windows Vista is 64bits. I believe Anti-Virus deleted some important files
> from Windows Update (and I don´t know what they are). I´ve tryed run Windows
> Update and "80070424 Code" always appears. The solutions posted by Discussion
> Group didn´t do any effect. I think I need reinstall Windows Update or repair
> it. But these aren´t possible, are they?
> I´m afraid I´ll format the PC just because Windows Update fails.