Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.

Discover the latest updates for Windows 10, including improvements and fixes, known issues, and guidance on how to get the update.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。

You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.

New to Xbox gaming on PC? Here's how to get started. Find out how to play with cloud gaming on devices you already have

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.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

How to access and change the privacy settings in Windows 10 and 11.

Learn how you can manage cookies and site data you've temporarily allowed in Microsoft Edge.