Learn how to use VLOOKUP, INDEX, or MATCH to search for data in Excel. Get a quick refresher and more tips from Microsoft Support.

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

选择 任务栏 右侧"网络"图标，然后移动"亮度 "滑块以 调整亮度。（如果未显示滑块，请参阅下方的“备注”部分。） 某些电脑可能允许 Windows 根据当前照明条件自动调整屏幕亮度。

Mit der Datenträgerverwaltung in Windows können Sie erweiterte Speicheraufgaben, wie das Initiieren eines neuen Laufwerks und das Erweitern oder Verkleinern von Volumes durchführen.

有线以太网连接可让你快速建立 Internet 连接 - 将以太网电缆的一端插入家里的路由器，然后将另一端插入 Windows 电脑上的以太网端口。

If you need help with Outlook.com, you can read our self-help content, or get support via email.

If you can’t locate a lost file from your backup, then you can use Windows File Recovery, which is a command line app available from the Microsoft Store.Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin.

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

Select Add Account, in the Suggested account dropdown, enter the iCloud account you want to add, and select Continue.

Join Teams meeting with ease using our step-by-step guide. Learn how to join a Teams meeting via your calendar, a dial-in number, or on the web.