Unable to install updates

Cherry, Have a look @ the Kishore (AVG Technologies) posting in this link (https://support.avg.com/answers?id=906b0000000DLeCAAW). 
AVG Guru

I have notification to tell me to install updates, however it keeps coming up with a notice saying "update has detected an installation running. Complete this before updating, however there is nothing else running

Cherry, Have a look @ the Kishore (AVG Technologies) posting in this link (https://support.avg.com/answers?id=906b0000000DLeCAAW). 
AVG Guru