When I disconnect all of the other drives, it can't boot because there are no boot files or system files on teh m.2 drive. I originally botched my windows installation and installed everything on...

That was my assumption as well, but nonetheless, when i click on disc 3, and go to properties, it reveals itself as my 960 evo. My mushkin eco ssd is disk 0 for some strange reason.

Yea, no, I kept unplugging all of the wrong drives because I thought my m.2 drive was my boot drive, so now that I know it isn't, I have to do a complete wipe and reinstall onto the m.2 drive. ...

So I tried unplugging the other drives, but it then acted like I didn't have a boot drive available. Does that indicate that the other disk is the boot drive rather than my m.2 Disk 0 drive? That...

Should I simply right click on the C: drive area and select to mark it as Active rather than all of that?

193011
I think I got it showing there correctly

Hoping you may be able to assist me as well.
This is driving me bonkers trying ot figure this thing out. I keep getting the following failure:
C:\WINDOWS\system32>mbr2gpt /validate /disk:0...