If you cloned your disk, moved partitions, or changed something you probably shouldn’t have, and now Windows won’t boot with the error 0xc000000e – Missing System Partition, don’t worry. You’re in the right place.
This problem usually happens when Windows loses track of the system or boot partition. Even if you already tried commands like bootsect, bcdboot or diskpart and nothing worked, the issue is often that one small but important step was missing.
Follow the steps below carefully. For many users, this is enough to fully fix the problem.
Step-by-step instructions
Boot your computer using a Windows 10 Installation USB flash drive.
At the first setup screen, press Shift + F10 to open the Command Prompt (alternatively access command prompt via Windows repair option from USB flash drive).
Now run the following commands exactly as shown, reading the comments to understand what each step does:
diskpart
list vol <- judging by the sizes listed and possibly the label, figure out which one is your installed Windows partition, also note which drive letter it looks like the USB flash drive is assigned
select vol # <- replace # with the actual volume number of your installed Windows partition
active
exit
X: <- change this drive letter to the drive letter of the installation USB flash drive.
CD \boot
bootsect /nt60 C: /force /mbr <- change C: to match the drive letter of your installed Windows partition you found in diskpart
bcdboot C:\Windows /s C: /f ALL <-Change both C: to match the drive letter or your installed Windows partition
exit
Final step
Reboot your computer normally and see if Windows starts correctly.
If this solved your problem, please let us know in the comments. If it didn’t, also tell us what happened. Your feedback helps others with the same issue and helps us improve the guides on GromasTech.com.
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[Original post by NavyLCDR at tenforums.com – This article exists as a backup and simplified explanation of information already available online.]