Fix: Boot Configuration Data File Error 0xc0000034

• Blog
• September 22, 2022

If you’re seeing the error code 0xc0000034 on your Windows 10 computer, it means that your Boot Configuration Data file is missing or corrupt. This error can be fixed by using the Bootrec.exe tool to rebuild the BCD.

Fix: Boot Configuration Data File Error 0xc0000034

What is Boot Configuration Data File Error 0xc0000034?

The Boot Configuration Data File Error 0xc0000034 is a very common error that can occur when trying to boot up a Windows-based computer. This error is usually caused by a corrupt or missing boot configuration file.

There are a few different ways that this error can be fixed. One way is to use the Windows Recovery Console to fix the boot configuration file. Another way is to use a bootable CD or USB drive to access the file and fix it.

If you are not sure how to fix the error, it is recommended that you seek out a professional computer technician to help you.

How to fix Boot Configuration Data File Error 0xc0000034?

If you’re seeing the Boot Configuration Data File Error 0xc0000034 on your PC, it’s likely due to a corrupted or missing BCD file. This can happen for a number of reasons, but most often it’s due to a failed Windows Update or a damaged hard drive.

Fortunately, there are a few ways you can try to fix this error. First, you can try using the Deployment Image Servicing and Management (DISM) tool to repair the BCD file. If that doesn’t work, you can try using the Bootrec.exe tool to rebuild the BCD file. Finally, if all else fails, you can try manually rebuilding the BCD file.

Let’s take a look at each of these methods in more detail.

Method 1: Use DISM to repair the BCD file

The DISM tool can be used to repair a corrupted or missing BCD file. To do this, follow these steps:

1. Press the Windows key + X to open the Power User menu.

2. Select Command Prompt (Admin) from the menu.

3. In the Command Prompt window, type the following command and press Enter:

dism /image:C:\ /cleanup-image /revertpendingactions

4. Wait for the command to finish running.

5. Reboot your PC.

Method 2: Use Bootrec.exe to rebuild the BCD file

If the DISM method didn’t work, you can try using the Bootrec.exe tool to rebuild the BCD file. To do this, follow these steps:

1. Press the Windows key + X to open the Power User menu.

2. Select Command Prompt (Admin) from the menu.

3. In the Command Prompt window, type the following command and press Enter:

bootrec /fixmbr

4. Wait for the command to finish running.

5. Type the following command and press Enter:

bootrec /fixboot

6. Type the following command and press Enter:

bootrec /scanos

7. Type the following command and press Enter:

bootrec /rebuildbcd

8. Wait for the process to finish.

9. Reboot your PC.

Method 3: Manually rebuild the BCD file

If the above methods don’t work, you can try manually rebuilding the BCD file. This is a bit more complex, so be sure to follow the steps carefully.

1. Press the Windows key + X to open the Power User menu.

2. Select Command Prompt (Admin) from the menu.

3. In the Command Prompt window, type the following command and press Enter:

bcdedit /export C:\BCD_Backup

4. Type the following command and press Enter:

C:\> attrib c:\boot\bcd -h -s -r

5. Type the following command and press Enter:

del c:\boot\bcd

6. Type the following command and press Enter:

bcdboot c:\Windows /l en-US /s z: /f ALL

7. Type the following command and press Enter:

z:> cd boot

8. Type the following command and press Enter:

bootrec /RebuildBcd

9. Wait for the process to finish.

10. Reboot your PC.

Conclusion

Though the Boot Configuration Data file error 0xc0000034 can be a bit of a nuisance, it is relatively easy to fix. In most cases, simply rebuilding the BCD will do the trick. If that doesn’t work, you can try using the Bootrec.exe tool. If all else fails, you can use the Windows Recovery Environment to repair the boot files on your machine.

Further Reading

If you encounter the Boot Configuration Data File Error 0xc0000034, there are a few things you can do to fix the problem.

One option is to use the Bootrec.exe tool to troubleshoot and repair boot problems. This tool can be found on your Windows installation disc. To use this tool, insert the disc into your computer and boot from it. Then, select the Repair your computer option and choose the Command Prompt. At the Command Prompt, type in “bootrec /fixboot” and press Enter. This should fix the Boot Configuration Data File Error 0xc0000034.

Another option is to use the System File Checker tool to scan for and repair corrupted system files. To use this tool, open the Command Prompt and type in “sfc /scannow”. This will scan your system for corrupted files and repair them.

Finally, you can try rebuilding the Boot Configuration Data (BCD) file. This file contains information about the boot options on your computer. To rebuild the BCD file, open the Command Prompt and type in “bcdboot c:\Windows /l en-us /s x: /f all”. This will create a new BCD file with the default boot options.

If you still can’t fix the Boot Configuration Data File Error 0xc0000034, you may need to reinstall Windows.