The beeping is probably from the tower itself. Precisely what the beep means
depends on the hardware, generally there is a code manual that would apply
to the system. Check with Dell support on the meaning of them, but usually
it means there is a hardware issue. Most times it's video or memory, but
there are other causes.
As to the security center, I doubt it's related. More likely that some
update to your application made it unrecognizable. Ensure that it actually
is running, then tell the security center that you are monitoring it.
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
Windows help - www.rickrogers.org
My thoughts http://rick-mvp.blogspot.com
"Mike B" <Mike B@discussions.microsoft.com
> wrote in message
> About a week ago my laptop began making a beeping sound, kind of like when
> you take a hearing test. It is not very loud, and I cannot hear it when I
> headphones. At first I did not pay any attention to it, but recently I ran
> System Health report and it said that "The Security Center reports that
> is no anti-virus product actively protecting this system. The Security
> has reported that on-access virus scanning is disabled. Either on-access
> scanning is disabled, or the anti-virus application is not recognized." Up
> until now, I have had no problem with my anti-virus. I do not know if
> are related or two different problems. I have a Dell XPS M1210 with
> Vista Premium. Any help will be greatly appreciated. Thank You.