Find out how to back up your apps, files, photos, and preferences on your Windows PC with File History and other tools.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Pour vous connecter à Hotmail, vous avez besoin de votre nom d’utilisateur et de votre mot de passe de votre compte Microsoft. Lors de la connexion, sélectionnez Oui à l’invite « Rester connecté ? » si vous souhaitez accéder directement à votre boîte aux lettres la prochaine fois (non recommandé pour les ordinateurs partagés ...

How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.

扩展或加载项是自定义浏览器体验并为你提供更多控制权的简单工具。 下面介绍如何在 Microsoft Edge 中添加、关闭和删除扩展或加载项 。

Select the Restore deleted favorites icon in the top right corner of the Favorites menu. Right-click (or select and hold) the item or folder you want to recover, then select Restore . Important: You can only restore favorites that have been lost or deleted in the past 28 days. To restore all available deleted favorites, press Ctrl + A to select ...

如果所购买的 Office 或 Microsoft 365 随附有产品密钥，请在你的产品所对应的下列网站中输入产品密钥。 输入密钥后，便可以下载并安装 Office，或可以续订 Microsoft 365 订阅。

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

Use Microsoft Teams (work or school) for a Microsoft work or school account or a guest account in Windows 11. Also, find out which version of Teams you’re using.

Windows 11 in S mode is designed for security and performance, exclusively running apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, you'll need to switch out of S mode.