安裝 Microsoft Defender，保護您的Android、iPhone、Mac和 Windows 裝置免於受到威脅。 在您的裝置上下載 Microsoft Defender，方法如下： 掃描下列 QR 代碼 在 App Store 中搜尋 Microsoft Defender 與您的裝置共用，下列連結： 複製連結 我們鼓勵您為每個人至少在五部裝置上安裝 Microsoft Defender。 準備好試試看了嗎？

A file in SharePoint, OneDrive, or Teams is blocked. What do you do? Read this article to learn why this is happening and steps you can take.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code Searching for Microsoft Defender in your app store Sharing with your devices, the following link: Copy link We encourage you to install Microsoft Defender on at least five devices per person. Ready to give it ...

Important: Starting March 5, 2025, Windows Subsystem for Android™ and the Amazon Appstore aren't available in the Microsoft Store.

Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.

How to install programs on Windows from online sources, such as from the internet or the Microsoft Store app.

Windows 安全中心应用的“病毒和威胁防护”页面旨在帮助你保护设备免受各种威胁（如病毒、恶意软件和勒索软件）的侵害。 该页提供对多个功能和设置的访问权限，以确保全面保护，分为以下部分： 当前威胁：此部分显示设备上当前发现的任何威胁、上次运行扫描的时间、花费的时间以及扫描的 ...

Open the Store app and search for your app or game. Open Store If you still cannot see the app you want, it may be because: The app isn't available in your country or region. Not all apps are available worldwide. An app available in France might not be available in Germany. If you bought an app in one country or region and then you moved to another one, the apps you had might disappear ...

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.