Open the Control Panel, set the view to small icons, and then click Programs and Features. The first thing to try is to repair the AVG program installation. Once it is deleted from the system, a fresh new copy can be downloaded and installed. Problems with AVG security software are not common, but they do happen occasionally and you might need to either fix the program or remove it. What do you do when there is a problem with it though? Follow this repair guide for the solution.
AVG is an excellent antivirus program and both the free and paid versions are used by a large number of PC users.