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

The SFC tool scans and repairs corrupted Windows system files.

Before downloading random files from the internet (which is dangerous), let Windows try to heal itself. This command replaces corrupted or missing system files with official versions. Command Prompt as Administrator. sfc /scannow and hit Enter. Restart your computer once the process hits 100%. 2. Update Windows & Visual C++ Redistributables ext-ms-win-oobe-query-l1-1-0.dll missing

In the same Administrator Command Prompt, type: DISM /Online /Cleanup-Image /RestoreHealth . The SFC tool scans and repairs corrupted Windows

Select if an installation exists, or choose Install if it is a fresh deployment. Reboot your system to register the updated paths. 4. Reinstall the Flagged Application Command Prompt as Administrator

This is the most effective solution. It forces Windows to check its own integrity and replace missing or corrupted system files automatically.