I’ve had several problems, with friends/customers that use AVG 2013 FREE, being told that their trial period is over and they are unprotected.
I suspect that what has happened is that they clicked on an upgrade option in the drop down “Nag Box” at the bottom of the AVG control panel. So this fix deals with just that one premise.
In the AVG 2013 FREE program there is just one file that is responsible for showing the Nag Box, and that one file is “bnfree.mht”, found in the AVG program files folder. Changing the name of that file, or just deleting it, will solve the Nag Box problem.
In the AVG 2013 Internet Security program (the paid version) rename all the files ending in .mht and the Nag Box will be gone.
This is a fairly simple process, for those with the technical expertise to do it.
It probably should not be attempted by casual users.
Cheers Mates!
The Doctor