Applies To
Windows 10, version 1607, all editions Windows Server 2016, all editions

Release Date:

4/12/2022

Version:

OS Build 14393.5066

EXPIRATION NOTICE

IMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows.

 

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 an issue that prevents you from changing a password that has expired when you sign in to a Windows device.

  • Updates security for your Windows operating system.       

Improvements

This security update includes quality improvements. Key changes include:

  • Addresses a heap leak in PacRequestorEnforcement that degrades the performance of a domain controller. 

  • Addresses an issue that affects the Key Distribution Center (KDC) Proxy. The KDC Proxy cannot properly obtain Kerberos tickets for signing in to Key Trust Windows Hello for Business.

  • Addresses an issue that logs Event ID 37 during certain password change scenarios, including failover cluster name object (CNO) or virtual computer object (VCO) password changes.

  • Addresses an issue that causes a Denial of Service vulnerability on Cluster Shared Volumes (CSV). For more information, see CVE-2020-26784.

  • Addresses an issue that prevents you from changing a password that has expired when you sign in to a Windows device.

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

For more information about security vulnerabilities, please refer to the new Security Update Guide website and the April 2022 Security Updates.

Known issues in this update

Symptom

Workaround

After installing updates released January 11, 2022 or later, apps that use the Microsoft .NET Framework to acquire or set Active Directory Forest Trust Information might have issues. The apps might fail or close or you might receive an error from the app or Windows. You might also receive an access violation (0xc0000005) error. 

Note for developers Affected apps use the System.DirectoryServices API.

To resolve this issue manually, apply the out-of-band updates for the version of the .NET Framework used by the app.

Note These out-of-band updates are not available from Windows Update and will not install automatically. To get the standalone package, search for the KB number for your version of Windows and .NET Framework in the Microsoft Update Catalog. You can manually import these updates into Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager. For WSUS instructions, see WSUS and the Catalog Site. For Configuration Manger instructions, see Import updates from the Microsoft Update Catalog. 

For instructions on how to install this update for your operating system, see the KB articles listed below:

  • Windows Server 2022: 

  • Windows Server 2019: 

  • Windows Server 2016: 

  • Windows Server 2012 R2: 

  • Windows Server 2012:

After installing the Windows updates released January 11, 2022 or later Windows versions on an affected version of Windows, recovery discs (CD or DVD) created by using the Backup and Restore (Windows 7) app in Control Panel might be unable to start.

Recovery discs that were created by using the Backup and Restore (Windows 7) app on devices which have installed Windows updates released before January 11, 2022 are not affected by this issue and should start as expected.

Note No third-party backup or recovery apps are currently known to be affected by this issue

This issue is addressed in KB5013952.

How to get this update

EXPIRATION NOTICE

IMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows.

Facebook LinkedIn Email
SUBSCRIBE RSS FEEDS

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Microsoft 365 subscription benefits

Microsoft 365 training

Microsoft security

Accessibility center