As of Jan. 24, 2015 and shortly thereafter, you may get an AVG pop up about the AVG 2015 Update.
If you do,
Click Update Now
Check off Basic Protection [NOTE: THIS IS A VITAL STEP!!!!]
Restart the computer if asked/required.
When done you will get another pop-up - this time of the regular whole interface, but with a banner across it: Congratulations! You've successfully updated to AVG Antivirus FREE 2015.
Even though you already had AVG Antivirus FREE 2015, it will show this.
Restart computer to finish.
Since you already had AVG Free 2015 installed, your custom settings will stay the same, so don't worry about that.
NOTE: You may get the Update notice twice (once and then again a few days to a week or so later). Just follow these same instructions each time.