Windows 10: Microsoft Defender Antivirus - Engine Version not matching

Discus and support Microsoft Defender Antivirus - Engine Version not matching in Windows 10 Software and Apps to solve the problem; Hello, about two/three days ago my Engine Version of Microsoft Defender Antivirus was changed to : 1.1.25020.1007 as seen on the pic below.However, the... Discussion in 'Windows 10 Software and Apps' started by robin sallé, Mar 8, 2025.

  1. Microsoft Defender Antivirus - Engine Version not matching


    Hello, about two/three days ago my Engine Version of Microsoft Defender Antivirus was changed to : 1.1.25020.1007 as seen on the pic below.However, the latest version I can find anywhere online for the engine is : 1.1.25010.7Nothing changed beside that, updates on the app are still happening and keeping in date with the latest ones, it's just the engine.I've tried downloading manually the latest verion from the official Microsoft page to fix it and the command to clear cache and such as they recommend but it didn't change anything And yes my Antivirus Version is now 1.423.291.0 too, like the

    :)
     
    robin sallé, Mar 8, 2025
    #1
  2. afornal Win User

    Defender AntiVirus

    There are 4 options under Defender. Two refer to AntiVirus; AntiVirus Network Inspection Service & AntiVirus Services. Under Startup Type these two are listed as manual and the Status column said Inspection Service is running. When I clicked on the Start
    button in Properties, I got an immediate message: "Win.. Def.. Anti.. Serv.. on local comp.. started and then stopped. Some services stop automatically if they are not in use by other services or programs."
     
    afornal, Mar 8, 2025
    #2
  3. Microsoft Defender VS Microsoft Defender Antivirus?

    Today, I uninstalled the Microsoft Defender app on my device.

    However, in Windows Security > Virus & threat protection > Security providers, Microsoft Defender Antivirus is listed as my Antivirus.

    When I click on "Open app" for Microsoft Defender Antivirus, it just redirects me to Windows Security > Virus & threat protection.

    1. Is Microsoft Defender Antivirus different from the Microsoft Defender app?

    2. Is my device still being protected?

    For context, I do not have any third party antivirus programs installed on my device right now,

    and I never signed into the Microsoft Defender app with my Microsoft account,

    nor do I have a Microsoft 365 subscription.
     
    Vacuum Rhythm, Mar 8, 2025
    #3
  4. Brink Win User

    Microsoft Defender Antivirus - Engine Version not matching

    Microsoft Defender update for Windows OS installation images

    • Defender package version: 20230604.1
    This package updates the anti-malware client, anti-malware engine, and signature versions in the OS installation images to following versions:
    • Platform version: 4.18.23050.3
    • Engine version: 1.1.23050.3
    • Security intelligence version: 1.391.476.0
    Package information The package size is approximately:
    • ARM64: 74 MB
    • X86: 126 MB
    • X64: 129 MB
    Known issues in this update None Update information 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. This package should be applied offline on Windows Images/VHD(x) file. Learn more about the package contents here: Manage Microsoft Defender Antivirus updates and apply baselines | Microsoft Learn This package also includes the latest security intelligence update that is available up to the date of release. Learn more about security intelligence updates including the release notes here. How to obtain this update Different update packages are required for different Windows OS image architectures. Select the architecture that matches the installation image to which you will apply this update: Microsoft Defender update for Windows Operating system installation image: 32-bit | 64-bit | ARM64
    Microsoft Defender Antivirus - Engine Version not matching notesmall10.png
    Note These links point to defender-update-kit-[x86|x64|arm].zip. Extract this .zip file to get the Defender update package (defender-dism-[x86|x64|arm].cab) and an update patching tool (DefenderUpdateWinimage.ps1) that assists the update operation for OS installation images. Package update tool The following prerequisites apply to running this patching tool (DefenderUpdateWinImage.ps1):
    • You must be running a 64-bit Windows 10 or later OS environment that includes PowerShell 5.1 or a later version.
    • The Microsoft.Powershell.Security and DISM modules must be installed.
    • You must start PowerShell on the device by using administrator privileges.
    Microsoft Defender Antivirus - Engine Version not matching notesmall10.png
    Note
    • Do not use this package to update live images because it can damage the Windows installation that Is running inside the Virtual Machine.
    • The DefenderUpdateWinImage.ps1 tool provides an option to remove the update. However, you may still want to keep a backup copy of images before you apply the update.
    How to apply this update PS C:\> DefenderUpdateWinImage.ps1 -WorkingDirectory <path> -Action AddUpdate -ImagePath <path_tMicrosoft Defender Antivirus - Engine Version not matching o_Os_Image> -Package How to remove or roll back this update PS C:\> DefenderUpdateWinImage.ps1 -WorkingDirectory <path> -Action RemoveUpdate -ImagePath <path_tMicrosoft Defender Antivirus - Engine Version not matching o_Os_Image> How to list the details of installed update PS C:\> DefenderUpdateWinImage.ps1 -WorkingDirectory <path> -Action ShowUpdate -ImagePath <path_tMicrosoft Defender Antivirus - Engine Version not matching o_Os_Image> References Learn about the terminology that Microsoft uses to describe software updates. Source: https://support.microsoft.com/en-us/...2-2d1f3865450d
     
    Brink, Mar 8, 2025
    #4
Thema:

Microsoft Defender Antivirus - Engine Version not matching

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