M
error 0xc000000f
Moderate
Microsoft · Windows
The Boot Configuration Data (BCD) file is missing, corrupted, or contains invalid entries — Windows cannot determine which partition to boot from
Quick Answer
Error code Error 0xc000000f on your Microsoft Windows means: The Boot Configuration Data (BCD) file is missing, corrupted, or contains invalid entries — Windows cannot determine which partition to boot from. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
21H222H223H2Server 2019Server 2022
Likely Causes
  1. BCD store corrupted by a failed Windows update or power loss during boot
  2. Disk cloning or partition resizing broke the BCD references
  3. The EFI System Partition was accidentally modified or deleted
  4. Malware tampered with the BCD file
How to Fix It
1
Boot from a Windows installation USB, select 'Repair your computer' > Troubleshoot > Startup Repair — try this first as it often fixes BCD issues automatically
2
If Startup Repair fails, go to Troubleshoot > Command Prompt
3
Run: bootrec /rebuildbcd — when prompted, press 'Y' to add the installation to the boot list
4
If that fails, delete and rebuild BCD: bcdedit /export C:\BCD_Backup then: ren C:\boot\bcd bcd.old then: bootrec /rebuildbcd
5
For UEFI systems: run diskpart > list vol to find the EFI partition (usually FAT32, 100-500MB), assign it a letter, then: bcdboot C:\Windows /s [EFI letter]: /f UEFI
6
If all else fails, verify the Windows partition exists and is healthy with: chkdsk C: /f
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Windows installation USB drive
Related Error Codes
Video Guides
Loading video guides…
Search more on YouTube →