Do you want to download and activate IDM 6.38 for lifetime. If yes then this post will help you a lot. Just follow the steps as written below. Internet Download Manager is one of the most used download manager. As it has feature to download any kind of files without loosing it. Because sometimes, you may have faced issue while downloading from normal browser as download breaks or file corrupt. But in IDM you can resume your download whenever you want to it with high speed.