Learn how to find your Windows product key for activation or when to use a digital license instead.

A scanner you've connected using a wired, wireless, or network connection. An app for scanning files, such as Windows Scan, available for free from Microsoft Store. The Windows Scan app can help you scan pictures or documents and save them to your PC as JPEG, bitmap, or PNG files. For more info, see Install and use a scanner in Windows.

如果某个严重问题导致 Windows 意外关闭或重启，则会出现蓝屏错误（有时也称为黑屏错误或终止代码错误）。 你可能会看到一条消息，指出“Windows 已关闭，以防止损坏你的计算机”或类似消息。 借助提示和资源自行进行疑难解答以解决 Windows 蓝屏错误；如果你需要更多帮助，请联系 Microsoft 支持。

You can view and clear your Microsoft Edge browsing history stored on a single device, across all synced devices, and in the cloud. You may choose to clear your browsing history at any time.

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False ( AND )，或只有一个条件需要为 True 或 False ( OR )，或者如果想要检查某个条件是否不 ( NOT) 符合你的条件，这时该怎么做呢？ 这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。

下载Microsoft Authenticator 重要: Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。 Android iOS 使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

Microsoft Edge 中的 Internet Explorer 模式 有些网站专为与 Internet Explorer 一起使用，它们具有 Microsoft Edge 等新式浏览器不支持的功能。 如果你需要查看其中的某个网站，可使用 Microsoft Edge 中的 Internet Explorer 模式。

Check the Xbox services, games, and apps for any service outages.

Windows 11 is designed to bring you closer to what you love and is releasing at a time when the PC is playing an even more central role in the way we connect, create and play. When we made the decision on where to set the minimum system requirements for Window 11, we focused on three principles to guide our thinking to help ensure a great user experience: