Yes, they do. Bitdefender offers a 30-day money-back guarantee on subscriptions, whether it’s a new one or a renewal. If ...

Let’s look at installation and how to download Bitdefender on a Windows 10 PC first, and follow that up with instructions for setting up Bitdefender on an Android smartphone.

Head over to the Bitdefender's Free Edition home page (not to be confused with their premium offering) and download the software. Double-click on the installer to begin the installation process.