I have an Issue please help i allow all to each and every thing but unable to update AVG update 

hii,

I think you should ask this question at AVG forum they will guide you in right direction. But for your query i found this AVG support article. Refer it and try to update accordingly:

https://support.avg.com/SupportArticleView?l=en_US&urlname=Update-failed-or-not-working-in-AVG

Regards.