AVG PRO update has a fault 0xc0070643

My update yesterday require a restart which I completed four times but still it showed restart required.
Tg
This morning AVG  Int Sec showed 'You are protected' BUT Computer, Identity & Firewall all showed not installed.
Managed to install Firewall again, but cannot complete the others.

I need some help again please!

Michael, Restart… Have a look @ this article (http://avgclick.me/1zeyMDT). Also have a look @ this article (http://avgclick.me/RepairAVG).
AVG Guru