
Windows 10 KB5065429 Update: Key Fixes for System Stability and Performance
A new optional update, KB5065429, is now available for Windows 10 versions 22H2 and 21H2. As a “C” release preview, this update is focused entirely on quality-of-life improvements and bug fixes, preparing the ground for the next mandatory security patch. If you’ve been experiencing system instability, device issues, or frustrating user interface bugs, this update may contain the solution you need.
This release addresses a wide range of problems, from critical system service memory leaks to annoying glitches with printers and the search box. Let’s explore the most significant changes and fixes included in the KB5065429 update.
Core System Stability and Performance Enhancements
Several key fixes in this update target the underlying services that keep Windows running smoothly, making them crucial for system administrators and users experiencing random slowdowns or crashes.
- Addresses a critical LSASS memory leak. One of the most important fixes resolves an issue with the Local Security Authority Subsystem Service (LSASS). In certain scenarios, LSASS could experience a memory leak after a Local Security Authority (Domain Policy) Remote Protocol (LSARPC) call, leading to system instability and unresponsiveness over time.
- Fixes high resource usage in Server Message Block (SMB). This update corrects a bug where a server running the SMB service could experience high I/O rates and excessive memory consumption, impacting network performance and server stability.
- Improves Windows Defender Application Control (WDAC). A problem that caused WDAC to create unnecessary audit events for policies that were already allowed has been resolved, cleaning up event logs and reducing system overhead.
- Corrects an issue with the Windows Firewall service. The update fixes a bug where the Windows Firewall service would not start, potentially leaving systems vulnerable and blocking network-dependent applications.
User Interface and Accessibility Fixes
This update also tackles several frustrating bugs that directly impact the user experience, restoring expected functionality to core Windows features.
- Resolves the disappearing search box issue. Many users reported a bug where the search box in the taskbar would unexpectedly disappear and reappear. This has been fixed for a more consistent desktop experience.
- Fixes the touch keyboard. An issue preventing the touch keyboard from opening on demand has been addressed, restoring a key feature for users of touchscreen devices.
- Improves the Narrator function. The update ensures that Narrator now correctly announces the “Change product key” label when navigating through system settings.
- Corrects a “Find My Device” settings page error. A bug preventing users from successfully accessing the settings page for “Find My Device” has been resolved.
Hardware, Driver, and Device Compatibility
Device conflicts and driver issues can be a major source of frustration. This update brings several important improvements for hardware compatibility.
- Addresses a multi-function printer installation bug. The update fixes a problem where a multi-function printer might be installed as a scanner, preventing users from accessing printing capabilities through standard dialogs.
- Resolves a USB printer driver issue. An issue where some USB printers were listed as “Unspecified” in Device Manager after a driver update has been corrected.
- Fixes BitLocker data-only encryption problems. For systems managed via Mobile Device Management (MDM) services like Microsoft Intune, this update solves an error that could occur during BitLocker data-only encryption.
- Corrects a DirectX driver issue on older Intel graphics. The update resolves a timeout error that could occur when using applications that rely on DirectX on older integrated Intel graphics drivers.
Should You Install This Update?
As an optional preview update, KB5065429 will not install automatically. You must manually initiate the installation.
- Install it if: You are currently experiencing one of the specific issues detailed above, especially the LSASS memory leak, SMB performance problems, or the search box bug. Installing this preview can provide an immediate solution.
- Wait if: Your system is running smoothly and you are not affected by any of these problems. All these fixes will be bundled into the next mandatory “Patch Tuesday” security update, which will be automatically installed on your system.
How to Install the KB5065429 Update
If you decide to install the update, follow these simple steps:
- Navigate to Settings > Update & Security > Windows Update.
- Click on Check for updates.
- Once the search is complete, you will see the optional update listed. Click on Download and install.
- Your computer will need to restart to complete the installation process.
By proactively addressing these bugs, this update provides a welcome boost in stability and reliability for Windows 10 users, ensuring a smoother and more secure computing experience.
Source: https://www.bleepingcomputer.com/news/security/windows-10-kb5065429-update-includes-14-changes-and-fixes/


