Windows 10: update KB5051987disables device protection on local security instances.

Discus and support update KB5051987disables device protection on local security instances. in Windows 10 Software and Apps to solve the problem; After installing update KB5051987 for windows 11, Homewindows disables device protection on local security instances.Which before the update did turn... Discussion in 'Windows 10 Software and Apps' started by King Paul, Feb 12, 2025.

  1. KING PAUL
    King Paul Win User

    update KB5051987disables device protection on local security instances.


    After installing update KB5051987 for windows 11, Homewindows disables device protection on local security instances.Which before the update did turn on with no problems.Now I have read that this was also a problem with previous updates and a solution was given for that. Does anyone know the specific fix for this update, the KB5051987windows 11 HomeVersion: 10.0.26100 Build 26100

    :)
     
    King Paul, Feb 12, 2025
    #1
  2. RAMESH SRINIVASAN
    Ramesh Srinivasan Win User

    Local Security Authority protection Bug?

    Open an admin Command Prompt and run these two commands:

    • reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v "RunAsPPL" /t REG_DWORD /d 2 /f
    • reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v "RunAsPPLBoot" /t REG_DWORD /d 2 /f
    Restart Windows. That should clear the yellow exclamation warning.

     
    Ramesh Srinivasan, Feb 12, 2025
    #2
  3. SUMIT D - VM
    Sumit D - VM Win User
    Device Security - Local Security Authority Protection is off. Your device may be vulnerable.

    After installing "Update for Microsoft Defender Antivirus antimalware platform - KB5007651 (Version 1.0.2302.21002)", you might receive a security notification or warning stating that "Local Security protection is off. Your device may be vulnerable." and once protections are enabled, your Windows device might persistently prompt that a restart is required. Important: This issue affects only "Update for Microsoft Defender Antivirus antimalware platform - KB5007651 (Version 1.0.2302.21002)". All other Windows updates released on March 14, 2023 for affected platforms (KB5023706 and KB5023698), do not cause this issue.

    Workaround: If you have enabled Local Security Authority (LSA) protection and have restarted your device at least once, you can dismiss warning notifications and ignore any additional notifications prompting for a restart. You can verify that LSA protection is enabled by looking in Event Viewer using the information available here. Important: Currently, we do not recommend any other workaround for this issue.

    Next steps: We are working on a resolution and will provide an update as soon as it is available.

    Affected platforms:

    • ​Client: Windows 11, version 22H2; Windows 11, version 21H2
    • ​Server: None
    Windows 11, version 22H2 known issues and notifications | Microsoft Learn
     
    Sumit D - VM, Feb 12, 2025
    #3
  4. RAMESH SRINIVASAN
    Ramesh Srinivasan Win User

    update KB5051987disables device protection on local security instances.

    Ramesh Srinivasan, Feb 12, 2025
    #4
Thema:

update KB5051987disables device protection on local security instances.

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