Don't use Internet Explorer. Use Firefox.
That won't prevent problems on Vista but
it will at least stop the download restrictions.
(And it may stop a few drive-by downloads as a bonus.
>
> I have tried to download quicktime for i dont know how many times now, ive
> went on hp chat support at least 3 or 4 times and they cant help me. but
it
> seem to be that i can't download any msi files. because i tried
downloading
> soemthing for norton (a msi file) and the same message popped up.
>
> message is: "windows has found a problem with this file" and "blocked
> because it does not have valid digital signature that verifies its
> publisher". AHH its so frustrating i really hope someone can help me.
>
> Jing