August 8, 2023—KB5029247 (OS Build 17763.4737)

Highlights 

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

Improvements

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

• This update addresses an issue that affects apps that use DirectX on older Intel graphics drivers. You might receive an error from apphelp.dll.

• This update affects user mode printer drivers. They unload unexpectedly. This occurs when you print from multiple print queues to the same printer driver.

• This update enhances hinting for some of the letters of the Verdana Pro font family.

• This update affects the Windows Kernel Vulnerable Driver Blocklist, DriverSiPolicy.p7b. It adds drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.

• This update addresses an issue that affects Kerberos constrained delegation (KCD). It fails on read-write domain controllers. The error message is, “KRB_AP_ERR_MODIFIED.” This occurs after you install the November 2022 security updates.

• This update addresses an issue that affects the Windows Management Instrumentation (WMI) repository. This causes an installation error. The issue occurs when a device does not shut down properly.

• This update addresses an issue that affects Event Forwarding Subscriptions. When you add an Event Channel to the subscription, it forwards events you do not need.

• This update addresses a deadlock in Internet Protocol Security (IPsec). When you configure servers with IPsec rules, they stop responding. This issue affects virtual and physical servers.  

• This update addresses an issue that affects Active Directory Federation Services (AD FS). It might take several attempts to sign in to AD FS successfully. This is because the time calculation for the expiration of a single sign on cookie is wrong.

• This update addresses an issue that affects AD Domains and Trusts snap-ins. They fail to enumerate domain trusts. The error message is, "The parameter is incorrect."

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 August 2023 Security Updates.

Windows 10 servicing stack update - 17763.4640

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. 

How to get this update

Before installing this update

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions. 

Prerequisite:

You must install the August 10, 2021 SSU (KB5005112) before installing the LCU. 

Install this update

File information

For a list of the files that are provided in this update, download the file information for cumulative update 5029247.

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 17763.4640.