Start > Control Panel > Security Center.
Bottom left side. "Change the way Security Center alerts me".
You can unchecked whichever item you do not want to be notified off.
I recommend against doing this with your antivirus and firewall unless you know why you are getting the notifications. Malware can disable your security products, which is one possibility here, so notifications can let you know about something you might otherwise be unaware of.fantasy5823
, another possibility is that you are running the free version of Bit Defender, which does not include a real time/on access scanner, which is the protection part of an installed antivirus and the main purpose of having an antivirus installed. To get that protection you have to pay for the commercial version of Bit Defender, the free version will just clean up infections that already exist on your computer. To get protection from a free AV, you'll need to install one of the following products:
Please let us know if you are using the free version, which would mean you have recently installed it and you've been getting the notifications ever since. If not, then we'll look into if malware is causing the notifications.