Buy Microsoft Windows 8.1 Professional

You need a Microsoft account to download your game. Create one or log into yours if you already have one. Follow the steps on the Microsoft app to buy the game and it will be automatically added to your account. It will appear in "My Library" and you can access it anytime.

The Serial code allows you to activate your software and download it via a vendor or publisher's own download platform. Please follow the vendor's instructions.