KB5066780: Overview with user sentiment and feedback

Overview

This security update for Windows Server, version 23H2 contains a variety of fixes and quality improvements. It addresses issues with input, networking, PowerShell, system stability, and compatibility. The update also includes security hardening changes for cryptography and File Explorer. Overall, this patch seems to address a number of important bugs and vulnerabilities to improve the stability and security of the operating system.

General Purpose

The key improvements included in this update are:- Fixed an issue where some characters didn't display correctly when using the Chinese Input Method Editor (IME).- Addressed an issue where certain Chinese characters appeared as empty boxes in some text fields when a character limit was set.- Fixed a networking issue that could prevent connecting to shared files and folders when using the SMB v1 protocol.- Resolved a problem that was causing PowerShell Remoting and Windows Remote Management (WinRM) commands to time out after 10 minutes.- Addressed a rare stability issue observed after installing previous updates that caused some devices to become unresponsive.- Removed the ltmdm64.sys driver, which will impact fax modem hardware dependent on this driver.- Enforced a security hardening improvement requiring the use of Key Storage Provider (KSP) instead of Cryptographic Service Provider (CSP) for RSA-based smart card certificates.- Automatically disabled the File Explorer preview feature for files downloaded from the internet to enhance security.

General Sentiment

Overall, this update seems to address a number of important issues that were impacting the stability and security of Windows Server, version 23H2. The fixes for networking, PowerShell, and system stability problems are particularly noteworthy, as these types of issues can significantly disrupt day-to-day operations.The security hardening changes for cryptography and File Explorer are also welcome improvements that will help protect users from potential vulnerabilities. However, the removal of the ltmdm64.sys driver may cause compatibility issues for some organizations still relying on fax modem hardware.While there don't appear to be any major known issues with this update, it's always recommended to thoroughly test updates in a non-production environment before deploying them widely. This can help identify any unexpected problems or regressions specific to your environment.If you do encounter issues after installing this update, Microsoft provides guidance on their Windows Release Health site for resolving them, such as the steps for addressing problems with smart card authentication. Overall, this seems like a solid update that addresses several important problems, but as with any update, caution and testing are advised.

Known Issues

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

Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2025-11-30 07:22 PM

Back to Knowledge Base Catalog