On Oct 2, 3:23 pm, Dina <D...@discussions.microsoft.com> wrote:
> Running Vista Home Premium
> CA Anti Virus 8.4.0.24
>
> The security center warns me that I have no anti virus when clearly I do
> (see above)
> The security center will NOT turn on Windows Defender even after I have told
> it to and it scaned for updates.
>
> WHY?

I know this may seem like a dumb question, but do you have all the
latest updates (both program and definitions?) It's been my
experience in the past that either can cause Vista to think it's
unprotected. CA should register with Vista just fine--as it's listed
on Vista's official security page.