1. Download and install Calibre.
2. Download Alf’s current DeDRM (choose the .zip option) and save the .zip somewhere you won’t delete it.
3. Open Calibre and install the DeDRM plugin using these instructions:
Open Calibre’s Preferences dialog. In the bottom row of icons under “Advanced”, click on the “Plugins” button. Next, click on the button, “Load plugin from file”. Navigate to the unzipped DeDRM_tools folder, find the file “DeDRM_plugin.zip”. Click to select the file and select “Open”. Click “Yes” in the “Are you sure?” dialog box. Click the “OK” button in the “Success” dialog box.
4. The plugin automatically works whenever you use Calibre to directly import a book with DRM.
At the time of these instructions, the current version is DeDRM 6.8.0.