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.

Add, remove or update an email address or phone number. If you want to make changes to the email addresses or phone numbers associated with your Microsoft account, use our guided support tool below to help you update the right information in the right way.

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

Get help and training for Office products, such as Word, Excel, PowerPoint, and Outlook. Learn tips and tricks, troubleshoot issues, and access online resources.

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

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

你如何自行解决此问题. 好消息是你可以自行解决此问题。. 你可以为订阅指定其他支付选项以支付逾期未付余额。. 只需登录包含订阅的 Microsoft 帐户，然后按照屏幕说明操作。. 注意 如果你使用同一信用卡购买了其他 Microsoft 服务，则这些服务也可能受到影响 ...

Press the Xbox button on your controller to open the guide, and then go to Profile & system > Settings > Account > Subscriptions. Select the subscription that you want to manage. From here, you can view your plan, expiration date, billing history, subscription status, and change how you pay.

All Outlook Data Files (.pst) and Offline Data Files (.ost) are listed along with the name of the account the files are associated with. If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

To find a customer service phone number in your country, please click a region and find your country. Note: Support cases for Surface devices may only be initiated online.