如果您已兌換產品密鑰、只是重新安裝應用程式，或是知道您已透過公司或學校指派授權，您可以跳到登入以 下載並安裝 Microsoft 365 或 Office 章節。 不過，如果這是您 第一次 安裝 Microsoft 365或 Office，您可能需要先執行一些步驟。 請展開下方的 深入了解 章節以取得詳細資訊。

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

Restart (reboot) your PC. Windows 10. Go to Start , select the Power button, and then select Restart . Select the Start button, then Power > Restart.

Windows Hello 是登录到 Windows 设备的一种更个性化、更安全的方式。 在 Windows Hello 中，你可以使用面部识别、指纹或 PIN 登录，而不是使用密码。 了解如何使用 PIN、面部识别或指纹通过 Windows Hello 登录电脑。

Find help and how-to articles for Windows operating systems, including installation, updates, privacy, security and more.

Remote Assistance and Easy Connect let someone you trust take over your Windows 10 PC and fix a problem from wherever they are.

Select PC and devices, and then select Lock screen. Turn off Swipe down on the lock screen to use the camera. Note: To keep the Camera app from using the camera, turn off the camera completely. Drag the app to the bottom of the screen and hold it there until the app flips over. If you have problems with the Camera app after changing privacy ...

Windows 11的重新安装类型 下图提供了有关每种重新安装类型可以选择的不同选项的信息，包括应用、文件、个人数据以及重新安装所需的磁盘空间量。 使用此图表可帮助你决定使用哪个选项重新安装Windows 11。

Get to know common Windows keyboard shortcuts including copy, cut, paste, maximize a window, and more.

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.