Microsoft Update Catalog
Title Products Classification Last Updated Version Size Download Update for Microsoft Defender Antivirus antimalware platform - KB4052623 (Version 4.18.25110.6) - Current Channel (Broad) …
How to Use Windows Security (Microsoft Defender Antivirus) on Windows …
Nov 17, 2024 · This guide covers everything you need to know about using Windows Security (Microsoft Defender Antivirus) in Windows 11.
Microsoft Windows Defender Download Free - 4.7.209.0
Jul 30, 2025 · Microsoft Windows Defender Definition Update December 31, 2025 Download the latest updates or definitions for your Microsoft Windows Defender security software Freeware …
Schedule Microsoft Defender Antivirus protection updates
Oct 20, 2025 · Expand the tree to Windows components > Microsoft Defender Antivirus > Security Intelligence Updates and configure the following settings: Double-click the Specify the day of …
How to Change Microsoft Defender Definitions Update Frequency
May 12, 2024 · Other than Windows Update, there is a periodic signature update task named “Windows Defender Update” scheduled task that updates the definitions when the system is …
defender-docs/defender-endpoint/microsoft-defender-antivirus-updates…
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How to Fix a Failed Microsoft Defender Update
Oct 28, 2022 · Keeping Windows Defender updated is important for your PC's security, but sometimes it needs some help updating itself.
Update Security Intelligence Definition Version | Windows
Dec 8, 2025 · Learn how to install the latest security intelligence update for Microsoft Defender Antivirus in Windows 10 to keep your system protected and up to date.
How to Update Microsoft Windows Defender?
Learn how to download and install the Microsoft Windows Defender definition updates using PowerShell, manually & automatically, and more with ManageEngine Patch Manager Plus!
How to update Windows Defender Automatically and Manually …
Jul 12, 2022 · Looking forward to update Windows Defender? Here's a step by step guide on updating it properly both automatically and manually.