KB5043145 : (OS Builds 22621.4249 and 22631.4249) Preview

Gradual rollout

These might not be available to all users because they will roll out gradually.​​​

• [Taskbar]​​​​​​​ New! You can now share local files directly from the search results that appear in the Search box on the taskbar.
• [Settings] New! The Delivery Optimization Settings page now matches the Windows 11 design. See Settings > Windows Update > Advanced options > Delivery Optimization.
• [Windows Share] New! This update removes the search box from the Windows Share window.
• [Lock screen] New! Media controls now show in the lower part of the lock screen at its center when media is playing.

[Start menu] New! ​​​​​​​The Sign out command is now on the account manager when you open the Start menu. To change to a different user, select the ellipses (...). A list of other users appears to make it easier to switch.

Normal rollout

• [Microsoft Edge] It sometimes stops responding when you use IE mode.
• [Windows identity protection] Users no longer need to enter their credentials more than once for Outlook or another encrypted email app. A user will be prompted for their PIN one time only.
• [Copilot Pro subscription] New! You can now manage your Copilot Pro subscription in Settings. Sign in to your Microsoft account and go to Settings>Accounts.
• [Task Manager] It stops responding when you switch from a high contrast theme to a normal theme.

Improvements
This non-security update includes quality improvements. Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.

• [IE mode] Microsoft Edge sometimes stops responding when you use IE mode.
• [Transmission Control Protocol (TCP)] There is inconsistent data between TCP_INFO_v1 and GetPerTcpConnectionEstats. File synchronization services use TCP connection performance analysis tools. This issue affects how accurate those tools are.
• [Country and Operator Settings Asset] This update brings COSA profiles up to date for certain mobile operators.
• [Outlook and other encrypted email apps] This issue prompts for your PIN each time you open an encrypted email.
• [Microsoft Defender for Endpoint] Work Folders files fail to sync when Defender for Endpoint is on.