It is relatively easy to remove drm from wmv files, all you need is the freeware called Fair Use 4 WM which you can downloaded in the latest version from yousendit. You need to prepare your system to be able to remove drm from wmv files, just take a look at the following steps. You need to uninstall Windows Media Player 11 if it is installed on your system. To do that go to the add / remove programs and check the show updates box as well.