April 17, 2018—KB4093113 (Preview of Monthly Rollup)

Applies to: Windows 7 Service Pack 1Windows Server 2008 R2 Service Pack 1

Improvements and fixes


This non-security update includes improvements and fixes that were a part of KB4093118 (released April 10, 2018) and also includes these new quality improvements as a preview of the next Monthly Rollup update:

  • Windows Update and WSUS will offer this update to applicable Windows client and server operating systems regardless of the existence or value of the "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat\cadca5fe-87d3-4b96-b7fb-a231484277cc" registry setting. This change has been made to protect user data.

  • Addresses additional issues with updated time zone information.
  • Addresses a stop error that occurred when the previous month’s update was applied to 32-bit (x86) computers with Physical Address Extension (PAE) mode disabled.

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

Known issues in this update


Symptom Workaround

After installing KB4056897 or any other recent monthly updates, SMB servers may leak memory when the requested path traverses a symbolic link, mount point, or directory junction and the registry key is set to 1:  

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanManServer\Parameters\EnableEcp
This issue is resolved in KB4103718.
A stop error occurs on computers that don't support Streaming Single Instructions Multiple Data (SIMD) Extensions 2 (SSE2). Upgrade your machines with a processor that supports SSE2 or virtualize those machines.
After you apply this update, the network interface controller may stop working on some client software configurations. This occurs because of an issue related to a missing file, oem<number>.inf. The exact problematic configurations are currently unknown.
  1. To locate the network device, launch devmgmt.msc; it may appear under Other Devices.
  2. To automatically rediscover the NIC and install drivers, select Scan for Hardware Changes from the Action menu.

a. Alternatively, install the drivers for the network device by right-clicking the device and choosing Update. Then choose Search automatically for updated driver software or Browse my computer for driver software.

After installing this update, some Windows 7.0 SP1 files reverted to older versions. This issue is resolved in KB4103713.

How to get this update


This is provided as an Optional update on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update. 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 4093113