November 9, 2021—KB5007205 (OS Build 20348.350)

NEW 11/9/2021 IMPORTANT Because of minimal operations during the holidays and the upcoming Western new year, there won’t be a preview release (known as a “C” release) for the month of December 2021. There will be a monthly security release (known as a “B” release) for December 2021. Normal monthly servicing for both B and C releases will resume in January 2022.

Improvements and fixes

This security update includes quality improvements. Key changes include:

• Addresses an issue in which certain apps might have unexpected results when rendering some user interface elements or when drawing within the app. You might encounter this issue with apps that use GDI+ and set a zero (0) width pen object on displays with high dots per inch (DPI) or resolution, or if the app is using scaling.
  If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.For more information about the resolved security vulnerabilities, please refer to the Security Update Guide and the November 2021 Security Updates.

Windows 10 servicing stack update - 20348.314

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

• 0x000006e4 (RPC_S_CANNOT_SUPPORT)
• 0x0000007c (ERROR_INVALID_LEVEL)
• 0x00000709 (ERROR_INVALID_PRINTER_NAME)
  Note The printer connection issues described in this issue are specific to print servers and are not commonly observed in devices designed for home use. Printing environments affected by this issue are more commonly found in enterprises and organizations.| This issue is resolved in KB5007254.
  After installing this update, Microsoft Installer (MSI) might have issues repairing or updating apps. Apps that are known to be affected include some apps from Kaspersky. Affected apps might fail to open after an update or repair has been attempted.| This issue is resolved in KB5007254.
  After installing this or later updates, Microsoft Defender for Endpoint might fail to start or run on devices with a Windows Server Core installation. Note This issue does not affect Microsoft Defender for Endpoint on Windows 10.| This issue is resolved in KB5008223.

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 5007205.For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 20348.314.