January 11, 2022—KB5009546 (OS Build 14393.4886)
Windows 10, version 1607, all editions Windows Server 2016, all editionsRelease Date:
1/11/2022
Version:
OS Build 14393.4886
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 causes searchindexer.exe to stop responding during a dismount operation in the Remote Desktop setup environment.
- Addresses an issue that causes the BranchCache republication cache to take up more space than it is assigned. This issue occurs if the cache size exceeds 0xFFFFFFFF (4294967295) bytes within a short period (usually within 30 minutes).
- Addresses an issue that prevents Active Directory (AD) attributes from being written properly during a Lightweight Directory Access Protocol (LDAP) modify operation when you make multiple attribute changes.
For more information about the resolved security vulnerabilities, please refer to the new Security Update Guide website and the January 2022 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. 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:
| We are working on a resolution and will provide an update in an upcoming release. |
How to get this update
Before installing this updateMicrosoft 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 5009546.
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