What causes error code 0xC0000034?

“Windows 8 Error code 0xc0000034” could be caused by a missing Master boot record. MBR files are files use by Windows 8 to boot. To fix this, kindly recover the MBR using the Windows 8 bootable device. See instructions on this link here, on how to recover the MBR.

How do I fix error 0xC0000034 in Windows 7?

Boot Error 0xC0000034 (The Windows Boot Configuration Data file is missing required information) is caused by missing self-referencing Boot Manager entry in the BCD registry hive. Error 0xC0000034 (status 0xC0000034) can be fixed by rebuilding Boot Configuration Data registry hive from scratch using Emergency Boot Kit.

How do I manually rebuild my BCD?

To do this, please follow the steps below.
  1. Press F8 during your computer’s startup (before starting Windows). …
  2. Select the operating system you want to repair, click next.
  3. In the system recovery options, click “Command Prompt”.
  4. Type at the prompt, Bootrec / RebuildBcd, and then press enter.

What is BCD error?

Usually, when BCD get corrupted or damaged, it will result in unbootable situations in Windows 10/8/7 and prompts one of the following BCD errors: Your PC/Device needs to be repaired. The Boot Configuration Data for your PC is missing or contains errors. File:\Boot\BCD Error code: xc000000f. Windows failed to start.

How do I fix error 0xc0000034 in Windows XP?

For 0xc0000034 error fixes, you have to prepare a DVD or USB with a bootable Windows Installation Media. Once you have an external drive prepared, go to the official Microsoft’s website and download the latest version of the Windows OS, e.g. Windows 7, 8, 8.1, XP, Vista or 10.

What is BCD win7?

BCD (Boot Configuration Data) is a firmware-independent database for boot-time configuration data. It is required by the new Windows Boot Manager and replaces the boot. ini used by NTLDR. It contains the menu entries presented by the Windows Boot Manager. Generally, BCD is saved in data files.

How do I reset my BCD?

Rebuild BCD in Windows 11/10
  1. Boot your computer into Advanced Recovery Mode.
  2. Launch Command Prompt available under Advanced Options.
  3. To rebuild the BCD or Boot Configuration Data file use the command – bootrec /rebuildbcd.
  4. It will scan for other operating systems and let you select the OS’s you want to add to BCD.

Where is boot BCD located?

The BCD information resides in a data file named bootmgfw. efi in the EFI partition in the EFIMicrosoftBoot folder. You will also find a copy of this file in the Windows Side-by-Side (WinSxS) directory hierarchy.

How do I stop repairing disk errors?

Windows is stuck on Repairing disk errors
  1. Wait for a few hours and see.
  2. Remove all external devices.
  3. Restart in Safe Mode and use CMD to run chkdsk.
  4. Run Repair-volume command.
  5. Use System Restore.
  6. Run Automatic Startup Repair.
  7. Repair computer using Installation Media.
  8. Check and replace your Hard Disk.

Why is my computer showing automatic repair?

A bad system update, a new graphics card, corrupted system files, even a fresh USB mouse—any of these can cause a dreaded Windows 10 automatic repair loop to occur when you’re trying to boot up a Windows PC.