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Release Date:

10/12/2021

Version:

OS Build 14393.4704

EXPIRATION NOTICE

As of 9/12/2023, KB5006669 is no longer available from Windows Update, the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest security quality update.

11/19/20
For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of  Windows 10, version 1607, see its update history page

Highlights

  • Updates security for your Windows operating system.   

Improvements and fixes

This security update includes quality improvements. Key changes include:

  • Addresses an issue that might prevent users from signing in to a domain controller using Directory Services Restore Mode (DSRM) over a Remote Desktop or a Hyper-V enhanced session.

  • Addresses an issue that occurs when the Lightweight Directory Access Protocol (LDAP) bind cache is full, and the LDAP client library receives a referral.

  • Addresses a redirector stop error that is caused by a race condition that occurs when the system deletes binding objects when connections close.

  • Addresses an issue that prevents the deletion of Immediate Tasks when their deletion timer activates, such as when you configure Group Policy preferences for Immediate Task actions.

  • Addresses an issue that affects Enterprise Mode Site List redirection from Internet Explorer 11 to Microsoft Edge. In certain circumstances, the redirection opens a site in multiple tabs in Microsoft Edge.

  • Addresses an issue regarding the just-in-time (JIT) behavior of jscript9.dll

  • Addresses a known issue that prevents an internet print server from properly packaging modified printer properties before sending the package to the client. 

  • Addresses an issue regarding a non-paged pool (NPP) leak from the UxSF pool tag. This leak occurs when lsass.exe stops processing asynchronous Security Support Provider Interface (SSPI) calls.

  • Implements a Group Policy setting for the following registry value:

    Registry location: HKLM\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint

    Value name: RestrictDriverInstallationToAdministrators

    Value data: 1

    For more information, see KB5005652.

  • Adds the ability to configure period or dot (.) delimited IP addresses interchangeably with fully qualified host names in the following Group Policy settings:

  • Addresses a known issue that might prevent devices from downloading and installing printer drivers when the devices attempt to connect to a network printer for the first time. We have observed this issue on devices that access printers using a print server that uses HTTP connections.

  • Addresses a known issue that might ask for administrative credentials every time you attempt to print. This occurs in environments in which the print server and print client are in different times zones.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.  

For more information about the resolved security vulnerabilities, please refer to the new Security Update Guide website and the October 2021 Security Updates.

Known issues in this update

Symptom

Workaround

After installing this update, Windows print clients might encounter the following errors when connecting to a remote printer shared on a Windows print server:

  • 0x000006e4 (RPC_S_CANNOT_SUPPORT)

  • 0x0000007c (ERROR_INVALID_LEVEL)

  • 0x00000709 (ERROR_INVALID_PRINTER_NAME)

Note The printer connection issues described in this issue are specific to print servers and are not commonly observed in devices designed for home use. Printing environments affected by this issue are more commonly found in enterprises and organizations.

This issue is resolved in KB5008207.

After installing updates released April 22, 2021 or later, an issue occurs that affects versions of Windows Server that are in use as a Key Management Services (KMS) host. Client devices running Windows 10 Enterprise LTSC 2019 and Windows 10 Enterprise LTSC 2016 might fail to activate. This issue only occurs when using a new Customer Support Volume License Key (CSVLK). 

Note This does not affect activation of any other version or edition of Windows. 

Client devices that are attempting to activate and are affected by this issue might receive the error, "Error: 0xC004F074. The Software Licensing Service reported that the computer could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional information."

Event Log entries related to activation are another way to tell that you might be affected by this issue. Open Event Viewer on the client device that failed activation and go to Windows Logs > Application. If you see only event ID 12288 without a corresponding event ID 12289, this means one of the following:

  • The KMS client could not reach the KMS host.

  • The KMS host did not respond.

  • The client did not receive the response.

For more information on these event IDs, see Useful KMS client events - Event ID 12288 and Event ID 12289.

This issue is resolved in KB5010359.

How to get this update

KB5006669 is no longer available.

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