Windows 10: Windows Security Offline Scan Not Functional

Discus and support Windows Security Offline Scan Not Functional in Windows 10 Software and Apps to solve the problem; Hello,Windows Security - MS Defender Antivirus offline scan is non-functional.If I select it and click Scan Now, it prompts me to save my work, then... Discussion in 'Windows 10 Software and Apps' started by B. Parker, Jan 27, 2025.

  1. B. PARKER
    B. Parker Win User

    Windows Security Offline Scan Not Functional


    Hello,Windows Security - MS Defender Antivirus offline scan is non-functional.If I select it and click Scan Now, it prompts me to save my work, then prompts for an Administrator's Password and after that is given - nothing. The Admin Password window closes and nothing happens. The screen just returns to the Scan Options page under Windows Security.This is for a machine running Windows 11 Pro, Version 24H2, Build 26100.2894 with all updates successfully installed.If I attempt this scan after rebooting in Safe Mode - the Windows Security screen is blank white with no options visible at all.H

    :)
     
    B. Parker, Jan 27, 2025
    #1
  2. ZTRUKER
    Ztruker Win User

    Windows Security offline scan

    I searched for: How effective is the Windows security offline scan. Got lots of hits but no ranking as to how effective it actually is. You can check out what Google returned though.
     
    Ztruker, Jan 27, 2025
    #2
  3. EYEINTHESKY
    EyeInTheSky Win User
    Microsoft Defender Offline Scan

    Restored the Macrium Image and got my Recovery partitions back:


    Windows Security Offline Scan Not Functional 306422d1605435439t-microsoft-defender-offline-scan-partitions-restored.jpg



    So as expected, I had a bunch of updates to do:


    Windows Security Offline Scan Not Functional 306423d1605435557t-microsoft-defender-offline-scan-updates.jpg


    After the updates, I gave Microsoft Defender Offline a try and it worked!


    Windows Security Offline Scan Not Functional 306424d1605435700t-microsoft-defender-offline-scan-offline.jpg



    Windows Security Offline Scan Not Functional 306425d1605435765t-microsoft-defender-offline-scan-percent-complete.jpg


    And this just shows that I'm back at the latest version build of 20H2:


    Windows Security Offline Scan Not Functional 306427d1605435878t-microsoft-defender-offline-scan-version.jpg


    This one was my fault and I admit I was the culprit of my own troubles. It was just a coincidence that I used Partition Wizard around the same time the Cumulative Updates were going on from Oct 28th to November 11th and it gave me the suspicion to suspect them being responsible for the Offline scan problem.

    I mean who the heck would of ever thought that a Recovery Partition would have anything to do with an Offline Scan in an Online world?

    A special thanks to OldNavyGuy for his suggestion that a Windows Recovery Partition being deleted was the problem.
     
    EyeInTheSky, Jan 27, 2025
    #3
  4. DALCHINA
    dalchina Win User

    Windows Security Offline Scan Not Functional

    Windows Security Virus Scan

    Please confirm you don't have a list like this:

    Windows Security Offline Scan Not Functional 274773d1587048469t-windows-security-virus-scan-1.png


    e.g. from here (or via the control panel):

    Windows Security Offline Scan Not Functional 274774d1587048581t-windows-security-virus-scan-2.png


    If not, suggests deeper problems. To which uninstall option are you referring? (A picture is worth...)
     
    dalchina, Jan 27, 2025
    #4
Thema:

Windows Security Offline Scan Not Functional

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