Hi KarenF55,
You can use AVG's uninstaller utility tool to forcefully uninstall their product: http://files-download.avg.com/util/tools/AVG_Re...
Hope this helps,
Nathan
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.