Windows failed to start. A recent hardware or software change might be the cause.

When you have this issue displayed on your screen while trying to start your Windows OS you will also have instructions on how to fix it.

Not always if you follow the instructions you will be able to fix your Windows OS and boot the system normally. When this happens and after you tried to repair your OS you are still facing the same issue that means that your master boot record MBR, boot sector or boot configuration data BCD store is corrupted. To fix the issue we are going to use Bootrec.exe.

To get access to bootrec.exe tool you will need to boot your PC from CD/USB with Windows installation on it.

  1. Select language settings, then click on Next
  2. Click on “Repair your computer”
  3. Click on “Troubleshoot”
  4. Click on “Command Prompt”

Once you have CMD up you are now ready to use bootrec to fix your MBR issue. To do that please type the following commands:

bootrec /fixmbr
bootrec /fixboot
bootrec /scanos
bootrec /rebuildbcd - "press Y to confirm the found OS to be added in the MBR"

Restart your PC and your OS will start normally without the issue you had before.