June 12, 2018 - KB4284878 (Security-only update)
Applies to: Windows 8.1, Windows Server 2012 R2
Improvements and fixes
This security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
For more information about the resolved security vulnerabilities, see the Security Update Guide.
- Security updates to Windows apps, remote code execution, Windows Server, Windows storage and filesystems, and Windows wireless networking.
Known issues in this update
Microsoft is not currently aware of any issues with this update.
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 4284878.
Source: https://support.microsoft.com/en-us/help/4284878
Direct download links for KB4284878 MSU file from Microsoft Update Catalog:
Download KB4284878 MSU for Windows 8.1 32-bit (x86) - 16.8 MB
Download KB4284878 MSU for Windows 8.1 64-bit (x64) - 22.5 MB