The computer cannot boot, and it displays the blue screen above instead. It says:
Your PC needs to be repaired. The Boot Configuration Data file is missing some required information. File: BCD Error code: 0xc0000034
The Boot Configuration Data, or BCD, got corrupted. The BCD is a bootloader file essential for loading up the Windows OS. I honestly don’t know the cause of my particular situation, which randomly occurred, but I suspect Windows Update screwed it up.
1. Force the computer to shut down by long-pressing the power button.
2. Get a Windows install disk. Mine was a bootable USB drive created with the Windows 10 ISO.
3. Boot from the install disk. To do this on my Yoga 2 Pro, I pressed the Novo button, selected “Boot Menu”, and chose to boot from my USB drive.
- When you see the language options, choose your language and click next.
- Click on “Repair your computer“.
- Click on “Troubleshoot“.
- Click on “Advanced options“.
- Click on “Command Prompt“.
- Enter command “diskpart“
- Enter command “list volume“
- There should be a 100MB volume. Find its volume #. Mine was 2.
- Enter command “select volume 2“. Replace 2 with your volume #.
- Enter command “assign letter k“.
- Enter command “exit“
- Enter command “rename k:efimicrosoftbootBCD BCD.bak“.
- Assuming that Windows is installed in the C partition, enter command “bcdboot c:windows /s k: /f ALL“.
- Close the Command Prompt.
- Click on “Turn off your PC“.
- Turn your computer back on.
- Booting may take a bit longer than usual, but your computer should now successfully start! If this guide helped you, please tell me in the comments and share the post!