Windows 10 Windows 8 Windows 8.1

How to Rebuild BCD Windows 10 |8.1

This is a step by step tutorial or a beginner’s guide to How to rebuild BCD (Boot Configuration DATA) and rebuild MBR (Master Boot Record) in Windows 10 & Windows 8 | 8.1.

Rebuilding BCD | Boot configuration data | MBR

To check & rebuild the Windows BCD:

  • If you are able to access lock screen on Windows, Press & keep holding the shift key & click on Restart to open Windows Recovery Environment (WinRE)
  • If not,
  • Insert the original Windows DVD/USB and boot from it
  • You can also use Windows Recovery Media
  • Select your Language & keyboard options
  • Click Next
  • Click on Repair your computer


  • Click Troubleshoot
  • Click on Advanced Options
  • Click on Command Prompt


  • Now,
  • Type bootrec /fixmbr
  • Press Enter
  • Then,
  • Type bootrec /fixboot
  • Press Enter
  • Then,
  • Type bootrec /rebuildbcd
  • Press Enter
  • Now, Type Exit


  • Restart your computer

By shantanu

Shantanu is a Windows Enthusiast, a troubleshooter & a writer. He is a Microsoft MVP in Windows Expert - IT Pro from 2007. You can check out his other work @

Leave a Reply

Your email address will not be published. Required fields are marked *