Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.

It’s easy to rack up Microsoft Rewards points and earn your way toward great rewards like gift cards, movies, games, nonprofit donations, and more.

Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

If you changed your hardware in order to upgrade to Windows 11 and the system is not recognizing the change in a timely manner, this article explains how to initiate the assessment manually.

Find your Windows settings in a snap! Select the Start button, then select Settings .From there, browse the categories or use search to find what you're looking for.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

了解如何在电脑上安装 Office 2013 或 Office for Mac 2011。

The new Outlook for Windows brings the latest features, intelligent assisted capabilities and a new modern and simplified design to your Outlook app.

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