Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to recover files that have been lost, deleted, or accidentally changed.

We recommend always having the latest version of Windows installed to make sure you get the best experience with the Phone Link .

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

Learn how to get ready for the Windows 11 upgrade, from making sure your device can run Windows 11 to backing up your files and installing Windows 11.

Visio is a diagraming tool that makes it easy and intuitive to create flowcharts, diagrams, org charts, floor plans, engineering designs, and more by using modern templates with the familiar Office experience. On this page, you can access some of the top templates and sample diagrams available in Visio, or request ones that you want. To see the hundreds of templates and sample diagrams ...

Windows で Bluetooth デバイスを接続し、Bluetooth ペアリング設定を調整する方法について説明します。