Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled. Someone you know, such as a family member, bought something with your card. You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or ...

Find out how to troubleshoot issues redeeming Xbox digital codes and gift cards.

如果将数字游戏或订阅作为礼品发送给某人时遇到问题，例如，无法发送、对方一直收不到或者对方无法使用充值码进行兑换，请在此获得帮助。 注意 不能将《堡垒之夜》的 V-Bucks、FC 积分以及其他虚拟货币作为礼品发送。

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Learn how to redeem your Microsoft Rewards points for a huge variety of great products and sweepstakes.

Check the Xbox services, games, and apps for any service outages.

Look at the address that pops up when you hover over the link. Ask yourself if that address matches the link that was typed in the message. In the following example, resting the mouse over the link reveals the real web address in the box with the yellow background. The string of numbers looks nothing like the company's web address. Tip

如何兌換禮品卡、Xbox 下載代碼或權杖 Microsoft 和 Xbox 禮品卡、下載代碼和令牌的運作方式相同：兌換到您的 Microsoft 帳戶後，您可以在 Microsoft Store 網路商店、Windows 或 Xbox 上花費餘額，並且您可以下載最新的應用程式、遊戲、電影和電視節目。 在大多數國家或地區，您也可以購買 Surface、Xbox 和配件 ...

Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.

Summary When you start your computer successfully, the Windows Registry Checker tool (Scanreg.exe) creates a backup of system files and registry configuration information (including user account information, protocol bindings, software program settings, and user preferences) once daily. Files that Windows Registry Checker backs up include System.dat, User.dat, System.ini, and Win.ini. This ...