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。

You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.

Learn how to back up apps, settings, files, photos, and Microsoft Edge favorites and preferences on your Windows PC.

System requirements and setup steps for the Phone Link app

Download the Microsoft 365 Access Runtime which allows you to run Microsoft 365 Access applications if you don't have the desktop version of Microsoft 365 Access and need to use an application built to run with Access 2010 or later.

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

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

Find out how to connect your Xbox Wireless Controller to a Windows device.

Learn how to fix common OneDrive personal or OneDrive for Business sync problems.

Hotmail が Outlook.com になりました。 サインインして、Outlook.com、Hotmail、Live、または MSN メール アカウントにアクセスする方法について説明します。