Task Host Window preventing shut down

Hello Keith,
Our tools are down due to emergency maintenance so we are unable to pull up your records and help you further. I request you to contact us after 24 hours, we will check with your AVG MyAccount and we will assist you further. I apologize for the delay in resolving the issue for you. I appreciate and thank you for your patience in this matter.
Best regards,
Alok.

Since renewing AVG last month I cannot shutdown automatically and my laptop has slowed considerably. On shutdown I get the message 'Task Host Window is stopping background tasks' I then have to manually override to close down. Have used the MS instructions to try and clear the fault. This instructs to use the Task Manager start-up tab and disable all the start up actions and then reboot to clear the system. I can disable all except the AVG ui restarter (dated June 2016), this appears to be  duplicated by this years renewal of AVG. How do I resolve this problem?

Hello Keith,
Our tools are down due to emergency maintenance so we are unable to pull up your records and help you further. I request you to contact us after 24 hours, we will check with your AVG MyAccount and we will assist you further. I apologize for the delay in resolving the issue for you. I appreciate and thank you for your patience in this matter.
Best regards,
Alok.