If the item you are trying to uninstall has a paused update, the Epic Games Launcher will not allow you to uninstall. You will need to cancel the update completely before you can uninstall it. To do this:
- Check in the lower left side of your Epic Games Launcher and click where it says Downloads.
- Find the paused download of the item you are looking to uninstall and click the X (Cancel) button.
- Once your download is canceled, try uninstalling the game/engine.