Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

Découvrez comment installer Office 2013 sur PC ou Office pour Mac 2011.

Learn how to get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.

A Microsoft Exchange account is a work or school email account. The organization that gave you the Exchange email account is running a Microsoft Exchange Server, or is using Microsoft 365 which uses Exchange Server to provide email.

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If either of the categories above apply to you, use the following procedures to update your browser: Update once. In the browser, go to Settings and more > Help and feedback > About Microsoft Edge (edge://settings/help).. If the About page shows Microsoft Edge is up to date., you don't need to do anything.

Follow the steps in this article to help you cancel your Microsoft 365 subscription.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

Use Find my device to locate and lock your lost or stolen Windows devices.