Update KB5011543 for Windows 10 bumps the version number to build 19044.1620, and according to the official changelogs (Release Preview Channel announcement), it introduces an updated version of the Windows Search experience that highlights moments in time. It also includes a new option for changing the color of toast notifications, adds a new policy to improve notification management, and brings several new fixes.

Update KB5011543 fixes and changes for Windows 10

These are the fixes and improvements available with the latest update preview of Windows 10:

Search highlights

Building 19044.1620 prepares the system for the new search highlights features coming to the Windows Search experience in the coming months. Microsoft explains that the search box in the Start menu and the Search icon in the Taskbar will periodically update with content, including fun illustrations, that help you discover more, be connected, and stay productive. The new feature will also show notable moments, such as holidays, anniversaries, and other educational moments in time both globally and in your region. Furthermore, search highlights will offer “additional content in search home related to today’s moment and daily content like word of the day, Microsoft Rewards offers trending searches, and more.” On the left pane, you will also find a list of your recently launched apps, files, settings, and websites to help you get back to what you were doing in the past. In addition, if you use a work or school account, you will also be able to use Microsoft Search in the organization.

Notification system

In this release, Windows 10 21H2 is getting a new option to change the color of toast buttons to identify success and critical scenarios more easily for apps that send notifications using the system notifications. Also, you will find a  new policy that expands an app’s top three notifications by default in the Action Center for apps that send notifications using the system notifications on Windows 10. This feature displays multiple notifications that you can interact with simultaneously.

Fixes and improvements

These are the fixes and improvements that Windows 10 is getting with the update KB5011543:

Update for older versions of Windows 10

In addition, Windows 11 version 1809 gets the update preview KB5011551 that brings the version number to build 17763.2746 and brings a bunch of fixes.

Download update KB5011543 for Windows 10

The update is available immediately and it will download and install automatically through the Release Preview Channel. However, you can always force the update from Settings > Update & Security > Windows Update, click the Check for updates button, and use the option to install the optional update. Update March 22, 2022: Microsoft initially released the update KB5011543 as build 19044.1618 in the Release Preview Channel on March 14. On March 22, the company is making available the same update as build 19044.1620 in the stable channel as an optional update. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.