This page provides phone numbers of Microsoft customer service.

如果尝试登录到帐户，但收到一条消息，表示该帐户被锁定，则这是因为与该帐户关联的活动可能违反了我们的使用条款。. 如何解锁 Microsoft 帐户

Add additional privacy protection to email messages with encryption.

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

To import a text file, you can open the file or import the text file as an external data range. To export a text file, use the Save As command.

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Learn how to add a custom domain name to your Microsoft 365 subscription with this support guide from Microsoft.

Learn how to use your Outlook inbox effectively with Microsoft Support's training resources.

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