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March 13, 2018 - KB4088879 (Security-only update) Windows 8.1


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

Applies to: Windows 8.1, Windows 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 issue where customers sometimes can't sign in to Windows 2012 R2 servers when using a custom credential provider on a console or RDP.
  • Provides cumulative Spectre and Meltdown protections 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.
  • 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.

Contact your antivirus manufacturer to verify that their software is compatible and that they have set the following REGKEY on the computer:

Key="HKEY_LOCAL_MACHINE"Subkey="SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat"

Value Name="cadca5fe-87d3-4b96-b7fb-a231484277cc"

Type="REG_DWORD”

Data="0x00000000”



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.

Source: https://support.microsoft.com/en-us/help/4088879


Direct download links for KB4088879 MSU file from Microsoft Update Catalog:

:arrow:Download KB4088879 MSU for Windows 8.1 32-bit (x86) - 18.7 MB

:arrow:Download KB4088879 MSU for Windows 8.1 64-bit (x64) - 28.0 MB
 

My Computer

System One

  • OS
    64-bit Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Custom self built
    CPU
    Intel i7-8700K OC'd to 5 GHz
    Motherboard
    ASUS Maximus X Code Z370
    Memory
    16 GB (8GBx2) G.SKILL TridentZ DDR4 3200 MHz
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    3 x 27" Asus VE278Q
    Screen Resolution
    1920x1080
    Hard Drives
    250GB Samsung 960 EVO M.2,
    256GB OCZ Vector,
    6TB WD Black WD6001FZWX
    8TB WD MyCloudEX2Ultra NAS
    PSU
    OCZ Series Gold OCZZ1000M 1000W
    Case
    Thermaltake Core P3
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master
    Internet Speed
    300 Mb/s Download and 30 Mb/s Upload
    Browser
    Internet Explorer 11
    Antivirus
    Malwarebyte Anti-Malware Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    Linksys EA9500 router,
    Arris SB6190 cable modem,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Lumia 1520 phone