The avg virus definitions allows manual update of your avg antvirus free, avg antivirus and avg internet security in case that you do not have internet connection or in case auto update fails. you can also perform updates using the update now option within the menu that opens after right mouse button clicking over the avg icon located on the. Avg download center makes it easy to download avg antivirus free or any of the other avg security & performance products for your windows devices.. Finally i want to say alok told me: "there should not be any problem with virus definition updates on avg version 2015 or above, i would not be able to manually download the latest virus definition file to load onto this computer. i guess i will begin my search for a new provider. thanks scott. august 31, 2018