Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

屏幕和睡眠的 Windows 默认设置已更新，以减少设备空闲时的能耗。 下表显示了屏幕和睡眠的新默认值。 若要了解如何更改 Windows 计算机上的屏幕和睡眠设置，请参阅 如何在 Windows 中调整电源和睡眠设置。 Modern Standby 设备的全新默认设定

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

Find out the risks of allowing apps through Windows Defender Firewall and how to add or remove apps from the list of approved apps. There are two ways to allow an app through Windows Defender Firewall. Both of them are risky: Add an app to the list of allowed

如果所在范围内有你认识并信任的另一 Wi-Fi 网络，请从你当前的 Wi-Fi 网络断开连接，然后连接到另一网络。 有关详细信息，请参阅在 Windows 中连接到Wi-Fi网络。

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

为 Google Chrome 设计的扩展也可以在 Microsoft Edge 中使用。 在 Microsoft Edge 中，转到 Chrome Web Store 。 在页面顶部的横幅中选择“ 允许来自其他应用商店的扩展 ”，然后选择“ 允许 ”以确认。

了解如何在 Microsoft Edge 中查看、管理和删除 Cookie。 如果你不希望第三方站点在你的电脑上存储 Cookie，则可以阻止 Cookie。 但是执行此操作可能会导致某些页面无法正确显示，或者可能会从站点收到一条消息，通知你需要允许 Cookie 才能查看该站点。

Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.