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Release Date:

10/12/2021

Version:

OS Build 14393.4704

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

Microsoft is not currently aware of any issues with this update.

How to get this update

Before installing this update

Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

If you are using Windows Update, the latest SSU (KB5005698) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

None. This update will be downloaded and installed automatically from Windows Update.

Windows Update for Business

Yes

None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product: Windows 10

Classification: Security Updates

File information

For a list of the files that are provided in this update, download the file information for cumulative update 5006669.

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