Windows 10 Error Code 0XC000000F

Dell T3500 running Window 7 64bit system was updated to windows 10 by enduser.  The system ran fine for a few weeks.  One morning the user returns to discover a blue recovery screen with  the following:
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Recovery
Your PC/Device needs to be repaired
A required device isn't connected or can't be accessed.
Error code: 0xc000000f
You'll need to use recovery tools.  If you don't have any installation media (like a disc or USB device), contact your PC administrator or PC/Device manufacturer.

Press enter to try again
Press F8 for Startup Settings
Press F9 to use a different operating system

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The enduser tried  Enter, F8, and F9 nothing worked so they called me.

I used a USB stick loaded with Windows 10 installation files.  After booting to the USB drive I tried repairing the OS but then I receive a message saying the drive is locked.  I ran chkdsk /r it ran completely and reported no problems found.  I ran Dell's hardware test on the memory and hard drive.  It reported no problem found.  I then booted from a live CD to see if I could see the file structure on the disk and maybe recover the USER folder.  I could see some boot directories and a few other files but the main filesystem did not show up.  I also noticed that the system is reporting that there is 0 bytes free on the disk.  This was a disk that had more than 70% free space before the problem began. I used CloneZilla to make a backup image of the hard drive.

I am unable to determine which device is not connected

I need help to resolve this issue.
1. Preferred result recover the OS and all the data return system to service.
2. Second option recovery the data and   roll the system back to windows 7
3. At a minimum find and copy (recover) the USER folder so I can reinstall the system to Windows 7