A little confusing here....Windows does not have an Anti Virus Program other
than what you installed.
Windows has Defender..
http://www.microsoft.com/windows/pro...r/default.mspx

There is a Windows Anti Virus 2008 which masquerades as a legitimate anti
virus program but in
reality is a nasty piece of crapware that sends fake alerts and prompts you
to buy another piece of crapware

http://www.precisesecurity.com/blogs...virus-xp-2008/

Removal Instructions are here

http://www.bleepingcomputer.com/malw...antivirus-2008

http://www.411-spyware.com/remove-antivirus-xp-2008

peter

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"tmb867" <tmb867@discussions.microsoft.com> wrote in message
news:100CEC9C-6175-4144-8A82-B833CFAD7C09@microsoft.com...
> I have an anti virus loaded on the computer. Windows Anti Virus keeps
> popping up with bad files and to remove them I have to purchase the
> software. When I click on the security center it opens with my anti virus
> working. Do I have to have both or how can I get it to stop popping up
> with
> to "remove" or "disable" msg. It pops up every 60 seconds? Help.