| 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. |
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Note
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
- This update addresses security issues for your Windows operating system.
Improvements
This security update includes quality improvements. When you install this KB:
- This update supports daylight saving time (DST) changes in Palestine. To learn more, see Interim guidance for DST changes announced by Palestinian Authority for 2024, 2025.
- This update supports DST changes in Kazakhstan. To learn more, see Interim guidance for Kazakhstan time zone changes 2024.
- This update supports DST changes in Samoa. To learn more, see Interim guidance for Samoa DST changes 2021.
- This update addresses an issue that affects a network resource. You cannot access it from a Remote Desktop session. This occurs when you turn on the Remote Credential Guard feature and the client is Windows 11, version 22H2 or higher.
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 2024 Security Updates.
Known issues in this update
| Symptom | Workaround |
|---|---|
| Windows devices might face VPN connection failures after installing the update dated April 9, 2024, or later. | This issue is addressed in KB5037763. |
| After installing the April 9, 2024 security update on domain controllers (DCs), you might notice a significant increase in NTLM authentication traffic. This issue is likely to affect organizations that have a very small percentage of primary domain controllers in their environment and high NTLM traffic. | This issue is addressed in KB5037763. |
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.