Terms & Conditions:
Works with Windows 10 PCs, tablets and phones, Windows 8.1, Windows Phone 8, Xbox One and Xbox 360 (Xbox Live required). Not redeemable on earlier versions. Music: Only for purchase of tracks, albums and music pass on Windows 10 and Windows 8.1 PCs and tablets, or music pass on Xbox One (Xbox Live required). You can’t use Xbox or Microsoft Gift Cards to purchase content from the Xbox 360 Marketplace or Xbox 360 content on the Xbox One. When you purchase an Xbox or Microsoft Gift Card, make sure that the currency you use matches the currency associated with the recipient’s billing account. Otherwise, the recipient will be unable to redeem the gift card. If you redeem an Xbox or Microsoft Gift Card in a country that doesn’t match the country associated with your billing account, you won’t be able to use those funds. The funds in your Microsoft account can’t be transferred after you redeem an Xbox or Microsoft Gift Card.
Go to microsoft.com/redeem, log into your Microsoft account, and enter the 25-character code provided. Once redeemed, your gift card balance will be available to spend at Microsoft Store online, on Windows, and on Xbox. Check your account balance.