KB5021235 Windows 10 1607 Security Update Dec 2022

Microsoft has released another security update, KB5021235, for Windows 10 version 1607 users. With this update, 14393.5582 will be the new Build number for the operating system. It is a critical patch that addresses security issues and potential threats to the Windows operating system.

The security update resolves problems related to the Local Security Authority Subsystem Service (LSASS.exe). It also deals with the suspension of daylight saving time (DST) for this year in the Republic of Fiji.

Windows 10 Cumulative update - 2022

Windows 10 KB5021235 Changelog

The update brings security as well as quality improvements. Here are a few of the changes:

  • With this update, Microsoft addresses the suspension for this year of daylight saving time (DST) in Fiji.
  • There have been some security issues with the Windows operating system that Microsoft has addressed in this update.
  • Microsoft is working on a known issue that might affect the Local Security Authority Subsystem Service (LSASS.exe). It might cause Windows domain controllers to leak memory. You may experience this issue after installing Windows updates dated November 8, 2022, or later.

Known Issue With KB5021235

The Microsoft ODBC SQL Server Driver might cause apps that use ODBC connections to connect to databases to fail after installing this update. It is also possible to receive an error from SQL Server or from the app. You may receive the following errors:

  1. The EMS System encountered a problem. Message: [Microsoft][ODBC SQL Server Driver] Protocol error in TDS Stream
  2. The EMS System encountered a problem. Message: [Microsoft][ODBC SQL Server Driver] Unknown token received from SQL Server.

If you want to check if you are using an affected app, open the database-connected app. Next, open the Command Prompt window and enter the following command:

tasklist /m sqlsrv32.dll

If running the above command shows a task, the app may be affected.

How to Get this Patch Update

As usual, you may download this security patch via Windows Update. For this, you need to navigate to the below path and hit Check for updates.

Settings (Win + I) > Update & Security > Windows Update

The system will check for any pending updates and if it finds any, the same will be downloaded and installed on your device. In case you didn’t find this KB5021235 security patch via Windows Update, visit Microsoft’s Update Catalog site, and hit the Download button.

Note: Make sure to check the system architecture before proceeding to download and install any update on your PC.

Release Note