February 13, 2024—KB5034768 (OS Build 17763.5458)

11/17/20
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 1809, see its update history page.

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 the download of device metadata. Downloads from the Windows Metadata and Internet Services (WMIS) over HTTPS are now more secure.
• This update addresses an issue that affects a local account. You cannot sign in to an account that Windows LAPS manages. This occurs if you set the “Require Smart Card for Interactive Logon” policy.
• This update addresses an issue that affects Windows Management Instrumentation (WMI). A caching issue occurs. The issue causes CurrentTimeZone to change to the wrong value.
• This update addresses an issue that affects the Windows nesting limit. You can now set it to a low of 35 instead of 50. This is the registry value in HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\USERNestedWindowLimit. To learn more, see What is the window nesting limit?. Do not change this limit unless a kernel stack overflow and a recursion in DestroyWindow**()** cause stop errors.
• This update affects Unified Extensible Firmware Interface (UEFI) Secure Boot systems. It adds a renewed signing certificate to the Secure Boot DB variable. You can now opt for this change. For more details, see KB5036210.
• This update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
• This update changes a setting in Active Directory Users & Computers. By default, the snap-in now uses a strong certificate mapping of X509IssuerSerialNumber. It does not use the weak mapping of x509IssuerSubject.
• This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). It might stop working. This occurs when you access the Active Directory database.
  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 February 2024 Security Updates.

Windows 10 servicing stack update - 17763.5441

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.

Known issues in this update

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

How to get this update

If you want to remove the LCUTo remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command:DISM /online /get-packages.Running Windows Update Standalone Installer (wusa.exe) with the**/uninstall **switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File informationFor a list of the files that are provided in this update, download the file information for cumulative update 5034768.For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 17763.5441.