IBY9X-ESYXT-W4BZQ-QI4WX-A9LI7-INRS3
AVG Internet Security 2016 Free for 1 Year according to http://www.techno360.in/avg-internet-security-free-1-year/
Actually this is a 374 days trial license, all you need to do is download the AVG IS 2016 installer from below links according your system configuration (32-bit or 64-bit) and use the license code.
For 32-bit (x86) Systems: http://files-download.avg.com/inst/mp/AVG_Internet_Security_…
For 64-bit (x64) Systems: http://files-download.avg.com/inst/mp/AVG_Internet_Security_…
AVG Interenet Security 2016 License number :
IBY9X-ESYXT-W4BZQ-QI4WX-A9LI7-INRS3
After downloading the installer, launch the installation process by clicking the continue button and enter the license code as listed above, then once again click the ‘continue’ button to proceed the installation process, finally restart your PC.
Sorry no expiry date given by that site. Not sure if existing AVG users need to uninstall their old one or not.