After the book is added, check the side of calibre to see if there was any change to 'Format: azw.' If the format changed anything like 'Format: azw4' etc.Click folder 'My Kindle Content.' Then click the book you want to add. Click the zip file 'KFX Input' to add the plugin. Go in to calibre to add plugins under 'Preferences'.Choose folder 'DeDRM_calibre_plugin' and then click the zip file name 'DeDRM_plugin' to add the plugin. Wait for book to download on Kindle Window PC Program.Do not buy the rented version because it won't work. Buy the Kindle book you want on Amazon.Link here: Register/Login to your Amazon account.Download Kindle version 1.24.3 or less.Steps for DeDRM and KFX plugins with Kindle Book for Windows 10 PC: At least how it would of helped me anyways. Here are instructions in the most paraphrased form. The information has scattered instructions and you kind of have to piece all the information together. I wanted to show this to everyone since I pieced everything together.

Kfx drm