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Applies To

Windows 10, version 1607, all editionsWindows Server 2016, all editions

Release Date:

12/14/2021

Version:

OS Build 14393.4825

EXPIRATION NOTICE

As of 9/12/2023, KB5008207 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.

^11/9/2021IMPORTANT Because of minimal operations during the holidays and the upcoming Western new year, there won’t be a preview release (known as a “C” release) for the month of December 2021. There will be a monthly security release (known as a “B” release) for December 2021. Normal monthly servicing for both B and C releases will resume in January 2022.

^11/19/20For information about Windows update terminology, see the article about the types of Windows updates and themonthly 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:

Adds support for the cancellation of daylight savings time for the Republic of Fiji for 2021.
Addresses a known issue that causes error codes 0x000006e4, 0x0000007c, or 0x00000709 when connecting to a remote printer that is shared on a Windows print server.
Addresses a known issue that might prevent apps, such asKaspersky apps, from opening after you attempt to repair or update the apps using the Microsoft Installer (MSI).

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 newSecurity Update Guide website and theDecember 2021 Security Updates.

Known issues in this update

Symptom	Workaround
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. OpenEvent Vieweron the client device that failed activation and go toWindows 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, seeUseful KMS client events - Event ID 12288 and Event ID 12289.	This issue is resolved inKB5010359.
After you install this update on a server that is running Windows Server 2016, you might not be able to use Remote Desktop to reach the server. Eventually, the server might stop responding. Additionally, a black screen might appear, and signing in and general performance might slow.	This issue is resolved inKB5010195.

Symptom

Workaround

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. OpenEvent Vieweron the client device that failed activation and go toWindows 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, seeUseful KMS client events - Event ID 12288 and Event ID 12289.

This issue is resolved inKB5010359.

After you install this update on a server that is running Windows Server 2016, you might not be able to use Remote Desktop to reach the server. Eventually, the server might stop responding. Additionally, a black screen might appear, and signing in and general performance might slow.

This issue is resolved inKB5010195.