So in a case of lousy timing, AVG messed up an upgrade that blocks internet access on some machines. But it’s not ‘just’ internet access, it’s also many things that use the Internet. so it blocks POP connections as well.
If you deployed MS08-067 security patch and then started seeing issues, it’s not an issue with the patch, rather it may be an issue with AVG.
In case that some components are inactive or you are experiencing blocked internet connection after the last AVG 8.0 program update (8.0.196), please try to restart your computer. If the issue persists even after the restart, proceed as follows in order to resolve this issue:
download the archive from the link below to your hard drive and extract it
run the “fixfiles.exe” utility
restart your computer
In case the issue still persists, please perform repair installation of your AVG as described in FAQ #948.
If the issue persists even after performing a repair installation, please contact us using the “Get Help Online” option in AVG.
More information about contacting AVG Customer Services can be found here: How to contact Customer Services
(Thanks to Fred Limmer and James Barrett for the details)