Ext-ms-win-oobe-query-l1-1-0.dll Missing Guide

ext-ms-win-oobe-query-l1-1-0.dll is missing is often a false positive

Type DISM /Online /Cleanup-Image /RestoreHealth and press . ext-ms-win-oobe-query-l1-1-0.dll missing

This is not a real missing DLL file but an API contract. The most likely fix is updating Windows or running sfc /scannow . If you are on Windows 7, the app simply cannot run. ext-ms-win-oobe-query-l1-1-0

, it is trying to query the status of Windows setup or initial configuration. Microsoft Learn The most common scenarios where this error occurs include: VBA or Custom App Development the app simply cannot run.