Info for Windows Insiders. If you’re an Insider and the current preview build isn’t working for you, select Start > Settings > System > Recovery .Next to Go back , select Go back.This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.

온라인 위협이 날마다 점점 더 발전하고 있으므로 웹 검색의 안전 우선 순위를 지정하는 것이 중요합니다. Microsoft Edge는 온라인 보안을 강화하고 개인 정보를 보호할 수 있는 몇 가지 기능과 사례를 제공합니다.

使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。 在 Android 设备上安装 Authenticator Google Play 商店在中国不可用，因此只能从以下商店下载Microsoft Authenticator：

When you try to open a Excel workbook, PowerPoint presentation, or Word document on your mobile device, you might receive a message stating that the file is locked for editing by another user.

Windows Media Player is included with Windows 10 desktop. Note that the app no longer plays DVDs. Find Windows Media Player on your PC: Use the search box on the taskbar to search for "Windows Media Player"

To open Internet Explorer, select the Start button, type Internet Explorer, and then select the top search result. To be sure you have the latest version of Internet Explorer 11, select the Start button, select Settings > Update & security > Windows Update, and then select Check for updates.

A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

Training: Watch and learn how to create a PowerPoint presentation, add/format text, and add pictures, shapes, and/or charts.

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.