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KB4520005 Security Monthly Quality Rollup Update for Windows 8.1 - Oct. 8

October 8, 2019 - KB4520005 (Monthly Rollup)

Applies to: Windows 8.1, Windows Server 2012 R2


Improvements and fixes

This security update includes improvements and fixes that were a part of update KB4516041(released September 24, 2019) and addresses the following issues:
  • Addresses an issue with applications and printer drivers that utilize the Windows JavaScript engine (jscript.dll) for processing print jobs.
  • Security updates to Windows Cryptography, Windows Authentication, Windows Kernel, Windows Storage and Filesystems, Microsoft JET Database Engine, Internet Information Services, the Microsoft Scripting Engine, and Windows Server.
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

Known issues in this update

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How to get this update

Before installing this update

Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest Rollup. SSUs improve the reliability of the update process to mitigate potential issues while installing the Rollup and applying Microsoft security fixes.

If you are using Windows Update, the latest SSU (KB4521864) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.

Install this update

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File information

For a list of the files that are provided in this update, download the file information for update 4520005.


Source: https://support.microsoft.com/en-us/help/4520005


Direct download links for KB4520005 MSU file from Microsoft Update Catalog:

:arrow:Download KB4520005 MSU for Windows 8.1 32-bit (x86) - 312.5 MB

:arrow:Download KB4520005 MSU for Windows 8.1 64-bit (x64) - 477.1 MB
 

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