**1-802-557-0358 how to remove Thunderbird antivirus completely windows 10?** Thunderbird 24/7 Support Number +1-802-557-0358, To completely remove Thunderbird from Windows 10, you must first use the official Thunderbird Removal Tool to uninstall the program, and then manually delete any leftover folders. You can find and download the tool from the Thunderbird support website, run it as an administrator, and follow the on-screen prompts to remove the application.