I can't open AVG via desktop icon, the message says my sytem administrator has blocked the application

Hi Alan,
 
Thank you for your fast response!
 
Backing up the registry and then deleting as recommended in the link from it:
 
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer
HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows
 
resolved the problem.  I assume because this system has only a single user there were no group policy HKLM and HKCU series registry entries to delete.
 
A key alert for AVG users is to always check the System Tray for the AVG icon and we have added a note on this system's monitor. If AVG doesn't start automatically the system is unprotected and something is wrong and needs to be investigated.
 
Thanks again,
Roy

@ Roy Schoenbeck
Roy, Have a look @ this similar link (https://support.avg.com/answers?id=906b0000000D46bAAC).
AVG Guru

Hi Roy,
I am happy to see that your issue is resolved.
Thanks for posting back.

@ Roy Schoenbeck
Roy, Have a look @ this similar link (https://support.avg.com/answers?id=906b0000000D46bAAC).
AVG Guru

Hi Alan,
 
Thank you for your fast response!
 
Backing up the registry and then deleting as recommended in the link from it:
 
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer
HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows
 
resolved the problem.  I assume because this system has only a single user there were no group policy HKLM and HKCU series registry entries to delete.
 
A key alert for AVG users is to always check the System Tray for the AVG icon and we have added a note on this system's monitor. If AVG doesn't start automatically the system is unprotected and something is wrong and needs to be investigated.
 
Thanks again,
Roy