Unable to install Windows 7 on Macbook Pro (mid2014)

Question

I have been trying unsuccessfully to install  Windows 7 using Bootcamp on a Macbook Pro  15" Retina display (mid 2014)
I have made a usb stick with  Windows 7 and drivers using bootcamp, and was able to partition a 50gb windows drive on the 500gb SSD drive in the Macbook.
Windows Setup seems to boot normally, and I get to the part where I am supposed to select and format the  Bootcamp partition.  I select format, but when I select Next after I format the Bootcamp partition,  Windows Setup tells me it was unable to create a new system partition or locate an existing system partition. I can't go any further.  I also noticed that the partition Name  BOOTCAMP disappeared when I formatted  the boot camp partition (partition 4).  I just run the bootcamp assistant and delete the windows partition, but I would like to install a Windows version.   Perhaps Windows 7 is not compatible with this macbook and I need to install Windows 8.1

Answer 1

Here is the output copied from Terminal. The first time that I tried to use Bootcamp, I lost 50gb when it failed, so I used Carbon Copy drive to restore my missing info.  I may try to delete it all, and recover then use time machine to reset everything back to original.
MacBook-Pro:~ John$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            499.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             784.2 MB   disk0s3
MacBook-Pro:~ John$ diskutil cs list
No CoreStorage logical volume groups found
MacBook-Pro:~ John$ sudo gpt -vv -r show /dev/disk0
gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060
gpt show: /dev/disk0: PMBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 977105059
      start       size  index  contents
          0          1         PMBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6        
         40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640  975163704      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC
  975573344    1531680      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
  977105024          3        
  977105027         32         Sec GPT table
  977105059          1         Sec GPT header
MacBook-Pro:~ John$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 60821/255/63 [977105060 sectors]
Signature: 0xAA55
         Starting       Ending
#: id  cyl  hd sec -  cyl  hd sec [     start -       size]
1: EE 1023 254  63 - 1023 254  63 [         1 -  977105059] <Unknown ID>
2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused