Error on AVG after updating: Protection Off

I updated my AVG 10.0.1390 recently.
I started having problems like not being able to access it at all because all the components were disabled.
I tried a system restore so I can access the program.
The “Identity Protection” and “Resident Shield” were both disabled leaving me unable to scan my PC for viruses.
I cannot also run the AVG Watchdog and shows an error message “Error 5: Access Denied” even if I am the Administrator.
What can I do to solve this?
Thanks for your possible help.
