after they installed internet security on my computer my hp wireless printer don't work on laptop or desktop windows 8 and windows 7
Hello Ronald,
I understand the inconvenience.
Please check whether recommended AVG Firewall settings was updated.
Open AVG Internet Security, click on "Menu–>Settings–>Components"
Click on "Customize" of enhanced firewall component and to the right of "Policies" scroll down to click on "System Rules".
Enable the option for "Windows file sharing and printing", "allow remote desktop connection" and the last entry "Enable stealth mode"
Below policies, click on "Network Profiles", to the right click on the network connection and change the profile to "Private" if it is set to "Public".
Keep us informed about the status.