Jack, Have a look @ this link (https://support.avg.com/answers?id=906b0000000D3DsAAK).
AVG Guru
Please help! I have both AVG 2014 which works fine and also the AVG Family. The AVG Family does not work and causes browsers to lock up rendering the PC just about totally usless. Trying to uninstall just the AVG Family product but once selecting uninstall and entering credentials the unistaller just spins without any progress. Using Windows 8.
Jack, Have a look @ this link (https://support.avg.com/answers?id=906b0000000D3DsAAK).
AVG Guru