[Solved] DISM Error 50 on Windows 10

About DISM

DISM, short for Deployment Image Servicing and Management, is a command-line tool. It can be used to perform servicing tasks on Windows installation images to prepare, modify and repair the images, including the images for Windows PE (Windows Preinstallation Environment), Windows RE (Windows Recovery Environment) and Windows Setup.

  • Dism /Online /Cleanup-Image /ScanHealth
  • Dism /Online /Cleanup-Image /RestoreHealth

Fix 1: Refresh DISM

When you see DISM error 50 on Windows 10, the first thing you can try is to refresh the DISM tool. It’s quite easy.

Fix 3: Reset BIOS

If you have tried all the fixes but still get “error 50 DISM does not support servicing Windows PE with the /Online option” message, you might need to reset BIOS to its default settings. As the detailed steps varies from model to model of computer, you should follow the manufacturer’s manual and instructions to reset BIOS.