Microsoft Defender Antivirus is a powerful tool that finds and removes malware from your PC. Here's how to use it in Windows 10 or 11 to scan your PC. Important: Before you use Microsoft Defender Offline, make sure to save any open files and close apps and programs. Open your Windows Security settings.

注意: 无线显示应用在运行 Windows 11 版本 22H2 及更高版本的设备上可用。. 如果运行的是早期版本的 Windows，请在任务栏的搜索框中输入 “连接 ”，然后在结果列表中选择“连接”，从而启动 “连接” 应用。. 若要了解正在运行的 Windows 版本，请参阅 我运行的是 ...

在Windows 10和Windows 11中查找和打开文件资源管理器，并通过固定和删除文件和文件夹来自定义快速访问。

Windows 11. Miracast wireless displays. Wirelessly connect your PC to a TV, projector, another PC, or other kind of external display that supports Miracast. Turn on your TV or projector. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display. On your PC, make sure Wi-Fi is turned on.

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This page provides answers to frequently asked questions about Xbox locales and the console settings that are dependent on your country or region. To see a full list of supported countries/regions, see: Xbox supported countries/regions.

Windows 11 Windows 10. You can add an input language in Settings. Adding an input language lets you set a language-preference order for websites and apps. It also lets you change your keyboard language. Select Start > Settings > Time & language > Language & region.

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Change your screen saver settings. Windows 10. Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings. In the Screen Saver Settings window, choose a screen saver from the drop-down list.

If you pre-ordered a game and want to cancel, you can do so up to 10 days before the game launches at: Order history. After this time, you may be billed, and you’ll need to request a refund to cancel your order. For more info about digital game pre-orders, see: Pre-order Xbox digital games in the Microsoft Store.