I recommend following these steps to fully reinstall AVG on you computer. What's the situation now?
AVG 2013 Free - repeatedly asks to restart
Further to other posts on this issue I have removed AVG 2013 and re-installed AVG 2013.
I have deleted temporary files using the Advanced Settings icon.
I have checked the Cfg folder to see if the updatecomps.cfg file appears to be correct and it appears to be.
I ran the AVG update several times and on each occasion following the reboot I get a pop up window with white letters on black background from AVG saying:
Computer restart required Your computer needs to be restarted to finish the following operations:
Setup or update process.
Restart now or remind me in: 1 hours.
Two buttons appear in the window:
[Postpone] and [Restart Now]
Selecting either button has the same effect viz. the problem persists and after a few hours the same window reappears asking for a restart.
I am running Win Vista HP SP2 on a Zoostorm desktop with 4GB RAM.