How to get and use app passwords - Microsoft Support
Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.
Installing Microsoft Defender | Microsoft Support
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 ...
Applies To:
Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
安装 Microsoft Defender - Microsoft 支持
通过安装 Microsoft Defender，保护 Android、iPhone、Mac 和 Windows 设备免受威胁。 通过以下方式在设备上下载Microsoft Defender： 扫描以下 QR 码 在应用商店中搜索Microsoft Defender 与设备共享，链接如下： 复制链接 我们建议在每人至少五台设备上安装Microsoft Defender。 准备好了尝试一下吗？
Applies To:
Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
Download Microsoft Authenticator | Microsoft Support
iOS Android To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store.
Microsoft security help and learning
Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.
How to help keep your Microsoft account secure
Learn how to keep your Microsoft account safe, including making a strong password, identifying safe emails, and reviewing account activity.
Applies To:
Microsoft account dashboard
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
Turn on Control flow guard on your computer - Microsoft Support
Learn how to turn on Control flow guard so you can install and run Windows Subsystem for Android.
View protected files with Microsoft Purview Information Protection ...
Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.
修复无法安装或删除程序的问题 - Microsoft 支持
摘要 如果无法在 Windows 11 中安装、卸载或更新桌面应用，则内置恢复选项和故障排除步骤可帮助解决常见问题，例如安装不完整或应用数据损坏。