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Microsoft Security Essentials is a free* download from Microsoft that is simple to install, easy to use, and always kept up-to-date so you can be assured your PC is protected by the latest technology.
On your PC, Microsoft Defender works with built-in Windows Security to provide additional device protection on your Android, iOS, and MacOS devices. Identity theft monitoring*, credit monitoring**, support, and insurance help keep your personal data safer online.
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.
Microsoft Security Essentials provides real-time protection for your home or small business PC that guards against viruses, spyware, and other malicious software.
Protect your data and devices with Windows Security. Get next-gen antivirus, malware defense, and tracking prevention with System Guard, Windows Defender, and more security features.
Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.
Microsoft Defender for individuals provides anti-malware protection on Android and macOS devices and web protection on Android and iOS devices. Identity theft monitoring 2 and credit monitoring 3 is available for Android, macOS, Windows, and iOS devices, and on the Microsoft Defender web portal.
