Boot Camp won't start after OSX Yosemite upgrade

Like so many others, I installed OSX Yosemite this morning and now Boot Camp no longer works.
After I updated to Yosemite I restarted my computer, held down  alt, and was presented nothing but a Macintosh HD. I followed “Loner T’s” instructions…
ndiskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo fdisk /dev/disk0
Enter you password when prompted.
…and now a windows option is available during startup. However, when selected, all I get is a black screen with "A disk read error occurred" notice.
I’m in serious trouble if I cannot repair this issue. PLEASE HELP.

Yes, here they are...
James-iMac:~ SIGMA$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            572.0 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         102.9 GB   disk0s4
James-iMac:~ SIGMA$ diskutil cs list
No CoreStorage logical volume groups found
James-iMac:~ SIGMA$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 1953525167
       start        size  index  contents
           0           1         MBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34           6        
          40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
      409640  1117208056      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC
  1117617696     1269544      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
  1118887240   633737912        
  1752625152   200898560      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
  1953523712        1423        
  1953525135          32         Sec GPT table
  1953525167           1         Sec GPT header
James-iMac:~ SIGMA$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 sectors]
Signature: 0xAA55
         Starting       Ending
#: id  cyl  hd sec -  cyl  hd sec [     start -       size]
1: EE 1023 254  63 - 1023 254  63 [         1 -     409639] <Unknown ID>
2: AF 1023 254  63 - 1023 254  63 [    409640 - 1117208056] HFS+       
3: AB 1023 254  63 - 1023 254  63 [1117617696 -    1269544] Darwin Boot
*4: 07 1023 254  63 - 1023 254  63 [1752625152 -  200898560] HPFS/QNX/AUX
James-iMac:~ SIGMA$

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