KB4519979 updates Windows 10 1607 to Build 14393.3300 – 15 Oct 2019

A new cumulative update KB4519979 is out for Windows 10 1607 users on 15th October 2019. This is basically a quality patch that takes the existing OS to build 14393.3300 and consists of several new sets of general fixes and improvements. According to the company, they address the issues related to the tablet’s screen, error SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (7e) and many more. The team has also pushed out a few known issues which they promised to work upon them in the forthcoming days.

Users may grab KB4519979 through Windows Update or Windows Server Update Services (WSUS) automatically. Besides, like all other patch updates, this update replaces any preceding update.


General Improvements and fixes on KB4519979

This non-security update build 14393.3300 doesn’t cover any new features rather comprises only the quality enhancements. Here are the Key changes-

  • In this patch, the company updates time zone information for Norfolk Island, Australia. 
  • The team updated time zone information for the Fiji Islands. 
  • Microsoft resolves an issue that may cause a tablet’s screen to rotate unexpectedly. 
  • Tech community works upon an issue that may cause an application window to flicker when running the application using RemoteApp. In addition, DWM.exe may terminate working on the session host. 
  • They work upon an issue that restricts Computer objects from being added to local groups using the Group Policy Preference “Local Users and Groups”. Here, the Group Policy Editor returns the error message, “The object selected does not match the type of destination source. Select again.” 
  • Build 14393.3300 rectifies an issue that causes a query request of the Win32_LogonSession class for the StartTime to demonstrate the value of the epoch instead of the actual logon time. For example, 1-1-1601 1:00:00
  • KB4519979 works upon an issue that inhibits an App-V application from opening and displays a network failure error. This issue occurs under certain circumstances, such as when a system’s battery is low or there is an accidental power failure. 
  • The company an issue in which Microsoft AppLocker may preclude an application from running or log a false positive error instead of running the application. 
  • The tech community resolves an issue that fails to include the full file hash as part of the Event Log entry during auditing events for Windows Defender Application Control (WDAC). 
  • It rectifies an issue that causes a system to discontinue working during the Windows upgrade process. The Stop error “SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (7e)” can be easily noticed in the Transmission Control Protocol/Internet Protocol (TCPIP). 
  • Works upon an issue that restricts netdom.exe from displaying the new ticket-granting ticket (TGT) delegation bit for the display or query mode.
  • While retrieving session objects, the company points out that an issue consumes high CPU usage.
  • Microsoft technician works upon an issue that causes applications that utilize change notifications on named pipes to have a kernel-mode memory leak of input and output (I/O) Request Packet (IRP) objects. 
  • They resolve an issue that causes Windows to become unresponsive when software attempts to communicate with the mount manager while the mount manager is performing certain operations. 
  • The company points out an issue that might cause various errors to occur during a block cloning operation on a Resilient File System (ReFS) volume because of a race condition. For example, 0x1E, 0xA, or 0x50.
  • They also deal with an irregular issue in Active Directory Federation Services (AD FS) that fails to authenticate users. Besides, AD FS redirects the browser back to the Microsoft Exchange Client Access services (CAS) with the wrong Audience uniform resource identifier (URI). Particularly, AD FS appends a slash to the Audience URI. It results in that the users see an error page and cannot access the Outlook Web App (OWA). 
  • Microsoft technician points out an issue with Lightweight Directory Access Protocol (LDAP) queries that have a “member of” expression in the filter. Here, the queries fail with the error, “000020E6: SvcErr: DSID-0314072D, problem 5012 (DIR_ERROR), data 8996”.
  • Worked upon an issue with assessing the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • They resolve an issue that restricts users from reducing the size of a window in some cases.
  • The company rectifies an issue with a race condition between the volume mount process (within fileinfo.sys) and the deregistration of filter notifications that cause the operating system to stop working on certain virtual machines. The error code is “0x7E.”
  • Microsoft team worked upon an issue in which files that are stored in a Cluster Shared Volume (CSV) with an alternate data stream are still present after you try to delete them. Furthermore, you may also receive an “access is denied” message on the next try to access or delete the files.

Known Issues

Symptom Workaround

In Build 14393.3300, after installation of KB4467684, may erupt some issues inside cluster services on the following error message-

“2245 (NERR_PasswordTooShort)”

This bug appears only when the group policy is configured to use 14 or more characters under “Minimum Password Length”. 

To counter this bug, you should use less or equal to 14 characters. 

Some services are directed to fail while renaming files and folders that are on a cluster shared volume.

On experiencing this issue, you may receive the following error message as well-


This trouble arises when either you don’t have the full rights to carry such operations. Hence, to resolve this issue, you should perform any of these-

  • Prior to executing such operations, login as an Admin.
  • Perform the operation using a node that doesn’t require CSV ownership.

How to get this Update

We suggest you download the KB4521858 servicing stack update before proceeding to install KB4519979. This ensures no bug appears during the whole update process. You may get this patch update through following ways- 

1. Windows Update

Navigate to Settings > Update & Security > Windows Update and tap “Check for Updates” button.

2. Microsoft Update Catalog

Click here to download the standalone package.