A Windows product key is a 25-character code used to activate Windows. It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Locate your product key for Windows 10 or Windows 11 Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Learn how to change your gamerpic, including how to upload a customized image for your profile from your Xbox console.

Find and open File Explorer in Windows, and customize Quick access by pinning and removing files and folders.

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

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 ...

如果你忘记了 Microsoft 帐户密码，请了解如何在线或使用你的 Xbox 主机重置密码。

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.

订阅退款 你可以随时取消 Xbox 订阅。 关闭定期计费将停止订阅的未来扣费，并使你在订阅到期之前使用其权益。 你也可能有资格立即取消并获得退款；但不是所有订阅费用都能退款。 若要详细了解 Xbox 订阅的退款策略以及如何取消订阅，请转到： Xbox 订阅取消和退款 可在此处检查 Xbox 订阅的状态 ...

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

从Microsoft帐户中删除现有别名 警告 删除连接到Microsoft域 (（如 @Outlook.com、@Live.com 或 @Hotmail.com) ）的电子邮件别名时，该电子邮件将从我们的系统完全删除，不能用于发送或接收电子邮件。 它不能再次用作另一个帐户的别名。 Microsoft不会回收电子邮件地址，因此将来无法回收电子邮件地址。