Bootsect Command Needed?

As shown in the screen capture of Explorer, Win 8, Win 7 and WinDev roots have a glaring difference.

I ran Easy BCD and removed Developers Preview as a boot option and kept my fingers crossed and then rebooted.
I booted into Win 7 and it worked just fine.

BUT, I am fearful that if I clear the Developer partition, I will not be able
to boot into Windows 7 because that root seems to be missing some critcal files.

Win8-Enterprise (C has these root files, bootmgr and BOOTNXT and user.js

The Developers root which resides on the drive that Windows 7 does, is the
partition I wish to delete. Music-Video (H

It is missing the user.js file, but it also has an additional file which is BOOTSECT.BAK,
along with bootmgr and BOOTNXT.

Do any of those files NEED to be in the root of WIN7-NEW (G to sucessfully boot?

Or is WIN7-NEW (G 'grabbing?' those files from another partiton when I boot from that drive?
If so, how do I successfully add those files to the root of WIN7-NEW (G ?

GULP
Windunce








Added dskmgnt.msc with Win7 as the OS.