September 12, 2023—KB5030220 (OS Build 10240.20162) - EXPIRED

Highlights

• This update supports daylight saving time (DST) changes in Israel.

• This update addresses security issues for your Windows operating system. 

Improvements 

This security update includes quality improvements. When you install this KB: 

• This update addresses an issue that affects all the registry settings under the Policies paths. They might be deleted. This occurs when you do not rename the local temporary user policy file during Group Policy processing.

• This update addresses an issue that affects authentication. Using a smart card to join or rejoin a computer to an Active Directory domain might fail. This occurs after you install Windows updates dated October 2022 or later. For more details, see KB5020276. 

• This update addresses an issue that affects the LanmanServer Service. It stops working in clusters that do not have an Administrative Access Point. These are also known as AD-Detached Clusters. They are recommended for Microsoft Exchange on some versions of Windows. To learn more, see Database availability groups.

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 September 2023 Security Updates.

Known issues in this update

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

How to get this update

EXPIRATION NOTICE

IMPORTANT As of January 27, 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.