Using remote access, these experienced scammers can misrepresent normal system messages as signs of problems. Scammers might also initiate contact by displaying fake error messages on websites you visit, displaying support numbers and enticing you to call.

Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.

This cumulative update for Windows 11, version 23H2 (KB5082052), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release.

We are releasing a new XBOX Update Preview to the Beta ring today. Continue reading below to learn all about what's included with this update. Note If you have enabled Keep my console up to date, the update will download and install automatically.

若要全面检测和删除恶意软件，请考虑使用 Windows Defender 脱机版 或 Microsoft 安全扫描程序。 本文介绍该工具与防病毒或反恶意软件产品有何不同、如何下载和运行该工具、当该工具发现恶意软件时将执行哪些操作以及工具发布信息。 它还包括面向管理员和高级用户的信息，包括有关支持的命令行开关的信息。 根据 Microsoft 支持生命周期策略，Windows Vista 或更早版本的平台上不再支持 MSRT。 有关详细信息，请转到 Microsoft 支持生命周期。 如果在 Windows 更新中遇到 MSRT 更新问题，请参阅 解决更新 Windows 10 时遇到的问题。

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: We encourage you to install Microsoft Defender on at least five devices per person. Ready to give it a try?

Microsoft Defender is a security app that helps people and families stay safer online with malware protection, web protection, real-time security notifications, and security tips. Microsoft Defender is included in a Microsoft 365 Family or Personal subscription and works on your phone (Android or iOS), PC, and Mac.

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

Real-time protection is a feature in the Windows Security app that continuously monitors your device for potential threats such as viruses, malware, and spyware. This feature ensures that your device is actively protected by scanning files and programs as they are accessed or executed.

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文件数。 还可以启动新的快速扫描，或从其他扫描选项中进行选择，以便进行更广泛的或自定义的扫描. 勒索软件防护：在本部分中，可以配置 受控文件夹访问，以防止未知应用更改受保护文件夹中的文件。 它还提供了配置 OneDrive 的选项，以帮助你从勒索软件攻击中恢复. 在电脑上的 Windows 安全中心 应用中， 选择“ 病毒 & 威胁防护 ”， 或使用以下快捷方式： 病毒 & 威胁防护. 在 “当前威胁 ”下，可以：