Unable to update my AVG

I am unable to update the antivirus and getting this massage:

"the update ha not been finished because the installation is corrupted"

Mansour, Have a look @ this AVG article (http://avgclick.me/RepairAVG).
AVG Guru

Mansour, Have a look @ this AVG article (http://avgclick.me/RepairAVG).
AVG Guru