Center, see this http://forum.grisoft.cz/freeforum/read.php?8,61949,62037#msg-62037
If it's not the Windows Security Center that notifies you, please post back.
After a uninstall of a problem program I am now receiving a notification Icon in the System Tray "Your computer may be at risk = Antivirus Software may not be installed"
Please Note! I thought the old AVG Free had a Hic Cup within so I have just reinstalled fresh a newly downloaded AVG program [and updated same] but yet I am still receiving the warning above
Before I had no problems as such?
Using Windows XP [OEM] Home with all updates installed