kb5124014

KB5124014 is a cumulative update for the out-of-box experience (OOBE) on Windows 11, version 26H1, released by Microsoft on September 22, 2026. It applies only to PCs going through first-run setup with an internet connection, where Windows installs it during setup, restarts the device, and replaces the earlier OOBE package KB5082960. Microsoft's support page does not detail what the update changes, so the practical value for administrators lies in its scope, delivery method, and position in the 26H1 servicing chain. For newly set up or reset 26H1 machines, it is the current setup-time package; already-configured PCs require no action.