Update failed or not working in AVG

Updates and Computer protection are in error  General error.
Than I removed AVG 2014 completely, even cleaned my registry with all AVG details
Rebooted and re-installed now AVG 2015, same error. AVG states I am not having Admin rights which I have. I am the only user. In the configuration screen I am said to be admin.
AVG error is still there  than I redownloaed from the server and choose the repair option… No joy.
In AVG is no proxy chosen and automatic selection of the internet connection
I use XP  please reply to taslin@upcmail.nl