Again, the one you were booted into when you made the screenshot is C. However it needs the System boot files from E in order to boot until it is repaired.
So please confirm that the one you were booted into when you made the screenshot is the one you want to keep.
Power down to unplug E HD, swap its data cable to C HD.
Boot into Windows 7 DVD or System Repair Disk
to run Startup Repair - Run 3 Separate Times
until Windows 7 on C starts on its own and holds the System Active flags in Disk management.
You can then plug back in E. If needed you can boot it using the one-time BIOS Boot Menu key, or access its data from C. When ready move the data off and wipe it using Diskpart Clean Command
to repartition in Disk Mgmt.