July 2022 Windows 10 Version 21H2 Non-Security Optional Preview "C" Release

Corrine · Jul 26, 2022

Microsoft released KB5015878 (OS Builds 19042.1865, 19043.1865, and 19044.1865), optional "C" release preview cumulative updates with non-security improvements and fixes.

The following are the highlights included in the update:

New! Gives you the option to receive important notifications when focus assist is on. Focus assist is like a do not disturb mode that hides notifications.
New! Restores functionality for Windows Autopilot deployment scenarios that are affected by the security mitigation for hardware reuse. This update removes the one-time use restriction for self-deploying mode (SDM) and pre-provisioning (PP). This update also re-enables any User Principal Name (UPN) display in user-driven mode (UDM) deployments for approved manufacturers.
Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.
Adds functionality that improves the OS upgrade experience.
Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.
Addresses an issue that affects certain games that use the XAudio API to play sound effects.
Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions.
Addresses an issue that prevents certain troubleshooting tools from opening.

Update: To get the update, go to Settings > Update & Security > Windows Update. The link to download and install the update can be found in the Optional updates available area. To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows 10 update history

July 2022 Windows 10 Version 21H2 Non-Security Optional Preview "C" Release

Corrine

Administrator, Microsoft MVP, Security Analyst

Administrator,
Microsoft MVP,
Security Analyst