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Release Date:



Preview of Monthly Rollup

Improvements and fixes

This non-security update includes improvements and fixes that were a part of Monthly Rollup KB4015551 (released April 11, 2017) and also includes these new quality improvements as a preview of the next Monthly Rollup update:

  • Addressed issue where the Network File System (NFS) server may not return all the directory entries to the NFS client that issues the ‘ls’ command using the NFS v3 protocol.

  • Addressed issue where Active Directory servers become unresponsive and must be rebooted when they have a heavy load of services using group managed service accounts (gMSAs).

  • Addressed issue where the printer cannot print OPENGL-rastered graphics after installing any of the following updates: KB3164035, KB3205394, KB3207752, KB3212646 and KB4012215.

  • Addressed issue where Internet Information Server returns an incorrect 500.19 internal server error for certain URIs.

  • Addressed issue where an application that uses Windows Presentation Foundation technology, the mouse, and the touchscreen intermittently stop responding.

  • Addressed issue to updated time zone information.

  • Addressed issue where, after installing KB3187754, clients can no longer access a file server when using SMB1 and NTLM authentication under certain conditions. No credential dialog appears, and the user receives the error, “A specified logon session does not exist. It may already have been terminated.”

Known issues in this update



After installing this update on computers where event forwarding is enabled, the WinRM service may crash. You may also experience a system performance issue, or logon may stop responding because of a deadlock in the WinRM service. 

Note This applies to all KBs released from April 18, 2017 through January 4, 2018.

This issue is resolved in KB4057402.


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 stand-alone package for this update, go to the Microsoft Update Catalog website.

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