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    Microsoft Support

    March 13, 2018—KB4088879 (Security-only update)

    Content provided by Microsoft

    Content provided by Microsoft

    Applies to: Windows 8.1Windows Server 2012 R2 Standard


    Improvements and fixes


    This security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

    • Addresses an issue in which customers sometimes can't sign in to Windows 2012 R2 servers when they use a custom credential provider on a console or RDP. 

    • Provides Spectre and Meltdown protection for 32-Bit (x86) and 64-Bit (x64) versions of Windows except the KB4078130 update that was offered to disable mitigation against Spectre Variant 2.

    • Provides security updates to the Microsoft Graphics component, Windows Kernel, Windows Shell, Windows MSXML, Windows Installer, and Windows Hyper-V.

    For more information about the resolved security vulnerabilities, see the Security Update Guide.

    Known issues in this update


    Symptom Workaround
    Because of an issue that affects some versions of antivirus software, this fix applies only to computers on which the antivirus ISV updated the ALLOW REGKEY.

    This issue is resolved in KB4093115. You no longer need the following ALLOW REGKEY to detect and be offered this update: 

    HKEY_LOCAL_MACHINE"Subkey="SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat\cadca5fe-87d3-4b96-b7fb-a231484277cc

     

    How to get this update


    This update is now available for installation through WSUS. To get the standalone package for this update, go to the Microsoft Update Catalog website.

    File information

    For a list of the files that are provided in this update, download the file information for update 4088879.


    Last Updated: Apr 10, 2018
    • Windows 8.1 and Windows Server 2012 R2
    • 2018-04 Preview of Monthly Rollup - KB4093121
    • 2018-04 Monthly Rollup - KB4093114
    • 2018-04 Security-only update - KB4093115
    • 2018-03 Preview of Monthly Rollup - KB4088882
    • 2018-03 Monthly Rollup - KB4088876
    • 2018-03 Security-only update - KB4088879
    • 2018-02 Preview of Monthly Rollup - KB4075212
    • 2018-02 Monthly Rollup - KB4074594
    • 2018-02 Security-only update - KB4074597
    • 2018-01 Preview of Monthly Rollup - KB4057401
    • 2018-01 Monthly Rollup - KB4056895
    • 2018-01 Security-only update - KB4056898
    • 2017-12 Monthly Rollup - KB4054519
    • 2017-12 Security-only update - KB4054522
    • 2017-11 Preview of Monthly Rollup - KB4050946
    • 2017-11 Monthly Rollup - KB4048958
    • 2017-11 Security-only update - KB4048961
    • 2017-10 Preview of Monthly Rollup - KB4041685
    • 2017-10 Monthly Rollup - KB4041693
    • 2017-10 Security-only update - KB4041687
    • 2017-09 Preview of Monthly Rollup - KB4038774
    • 2017-09 Monthly Rollup - KB4038792
    • 2017-09 Security-only update - KB4038793
    • 2017-08 Preview of Monthly Rollup - KB4034663
    • 2017-08 Monthly Rollup - KB4034681
    • 2017-08 Security-only update - KB4034672
    • 2017-07 Preview of Monthly Rollup - KB4025335
    • 2017-07 Monthly Rollup - KB4025336
    • 2017-07 Security-only update - KB4025333
    • 2017-06 Preview of Monthly Rollup - KB4022720
    • 2017-06 Monthly Rollup - KB4022726
    • 2017-06 Security-only update - KB4022717
    • 2017-05 Preview of Monthly Rollup - KB4019217
    • 2017-05 Monthly Rollup - KB4019215
    • 2017-05 Security-only update - KB4019213
    • 2017-04 Preview of Monthly Rollup - KB4015553
    • 2017-04 Monthly Rollup - KB4015550
    • 2017-04 Security-only update - KB4015547
    • 2017-03 Preview of Monthly Rollup - KB4012219
    • 2017-03 Monthly Rollup - KB4012216
    • 2017-03 Security-only update - KB4012213
    • 2016-12 Monthly Rollup - KB3205401
    • 2016-12 Security-only update - KB3205400
    • 2016-11 Preview of Monthly Rollup - KB3197875
    • 2016-11 Security-only update - KB3197873
    • 2016-11 Monthly Rollup - KB3197874
    • 2016-10 Preview of Monthly Rollup - KB3192404
    • 2016-10 Security-only update - KB3192392
    • 2016-10 Monthly Rollup - KB3185331
    • 2016-09 - KB3185279
    • 2016-08 - KB3179574
    • 2016-07 - KB3172614
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