Thanks everyone for the help, but I gave up.  I have a SSD enclosure for my Mac Mini and I put the drive in there and the Mac recognized it.  I then plugged it into my PC and it recognized it.  I formatted it and all was good.  I took it out, put it in the slot on the motherboard and nothing. So, I just swapped the drives and my PC recognizes the drive that was being used by the Mac just fine.
I recently added a M.2 SSD to the open slot next to the WI-fi module on my XPS 8950.  BIOS sees the drive, but windows does not.  Anyone know what I have to do to use the drive? I've gone through Disk Management and Device Manager and it is just not there.
XPS 8950 BIOS sees added 2TB M.2 drive, but Windows does not