If you visit the lavasoft website as suggested by kyprosman, the new files will download as a zip file. Choose desktop because it is easiest. Double click the icon and you will be given the option to unzip the file. Choose drive C and open that then scroll down to program files and highlight Adaware. Click to unzip. You will be told that the program already contains a file labelled defs, and do you want to replace this file, choose yes to all. If you then re-open Adaware you will see that the new defs are installed by looking at the date shown there. You can then safely delete the zip file from your desktop.