Security intelligence updates for Microsoft Defender Antivirus and ...
Download the latest security intelligence updates for Microsoft Defender Antivirus, Microsoft Security Essentials (MSE), System Center Endpoint Protection (SCEP) and other antimalware.
Microsoft Defender Antivirus security intelligence and product updates
Keeping Microsoft Defender Antivirus up to date is critical to assure your devices are protected against new malware and attack techniques. Update your antivirus protection, even if Microsoft Defender …
Microsoft Defender update for Windows operating system installation ...
Feb 4, 2021 · This package includes monthly updates and fixes to the Microsoft Defender antimalware platform and engine that is used by Microsoft Defender Antivirus in Windows 11.
Installing Microsoft Defender - Microsoft Support
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
Windows Security: Defender Antivirus, SmartScreen, and More
Protect your privacy, identity, and devices with Windows Security. Explore Windows 11 security features like Microsoft Defender Antivirus that help keep you and your PC safe.
Manage how and where Microsoft Defender Antivirus receives updates ...
Oct 21, 2019 · See Manage Microsoft Defender Antivirus updates and apply baselines article for an overview on how updates work, and how to configure other aspects of updates (such as scheduling …
" Microsoft Defender Antivirus" - catalog.update.microsoft.com
If you have a pop-up blocker enabled, the Update Details window might not open. To open the Update Details window, configure your pop-blocker to allow pop-ups for this Web site.
Microsoft Update Catalog
If you have a pop-up blocker enabled, the Update Details window might not open. To open the Update Details window, configure your pop-blocker to allow pop-ups for this Web site.
Microsoft Update Catalog
If you have a pop-up blocker enabled, the Update Details window might not open. To open the Update Details window, configure your pop-blocker to allow pop-ups for this Web site.
Troubleshoot Microsoft Defender Antivirus Security intelligence not ...
Sep 29, 2025 · Learn how to troubleshoot Microsoft Defender Antivirus Security intelligence not getting updated.