Summary
This cumulative update improves the Windows 11, version 26H1 out-of-box experience (OOBE). This update applies only to the Windows OOBE process and is available only when OOBE updates are installed.
How to get this update
Install this update
This cumulative update is installed during the Windows OOBE process if an Internet connection is available.
About this update
| Item | Details |
|---|---|
| Prerequisites | There are no prerequisites for installing this update. |
| Restart information | Your device requires a restart after applying this update. |
| Update replacement | This cumulative update replaces the previously released update KB5082960. |
| File information | A list of the files included in this update is provided in a CSV (comma-delimited) (.csv) file. You can open the file in a text editor, such as Notepad, or in Microsoft Excel. Note: The English (United States) version of this software update might contain files for additional languages. 
Download the file information for update KB5124014. |
References
- Out of Box Experience overview
- Windows updates during OOBE
- Description of the standard terminology that is used to describe Microsoft software updates
Related topics
Windows Secure Boot certificate expiration
Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and preparation steps, see Windows Secure Boot certificate expiration and CA updates.