Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

在此期间，登录到你的帐户以查看最新的退款请求状态。. . 从 Xbox 主机进行购买时看到以下错误代码和消息：. PBR9012. 我们无法获得此方式的授权。. 请尝试另外一种方式或新方式支付。. 如果有其他问题，请咨询你的银行。. 这意味着尝试购买的审批授权存在 ...

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

若要取消购买，需要登录用于购买的 Microsoft 帐户，并提供所购买内容的名称、订单编号和取消原因。. 收集此信息后，请联系 aka.ms/contactxboxsupport 请求支持。. Xbox 支持代理将通知你是否可以取消购买或退款。. 有关 Xbox 实物产品（如光盘游戏和控制器）和其他 ...

Looking for help? For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site. Get help.

尝试在 Xbox 主机上进行购买时看到以下错误消息：. 很抱歉，您的帐单地址有问题。. 请在“设置”、“帐户”、“管理支付选项”中修复它，然后返回再试一次。. 这意味着您的帐单地址不正确。. 若要更新 Microsoft 帐户帐单地址，请参阅：. 更新你的账单地址和 ...

Office is prompting me for a product key. Use your Microsoft account, not your product key, to install and activate Office and individually purchased Office apps, such as Project, Visio, Word, Excel, and Outlook. Sign in to install Office. Bookmark the site below so you always know where to go to install Office.

尝试在 Xbox 主机上进行购买时看到以下错误消息：. 已阻止您的账户在 Microsoft Store 中进行购买。. 有关详细信息，请转到 Xbox.com/PurchaseBlock. 这可能意味着：. Xbox 服务暂时出错。. Microsoft 帐户的隐私和在线安全设置正在阻止您进行购买。. 您的 Xbox One 主机或 ...