Help - Windows partition has vanished after OSX updates.
Unsure what has happened here, but I can no longer boot to Windows Partition?
Looking at another thread it was suggested to run the following:
mac-mini:~ ianpaine$ 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 250.8 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data 251.0 GB disk0s4
mac-mini:~ ianpaine$ diskutil cs list
No CoreStorage logical volume groups found
mac-mini:~ ianpaine$ 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 489833880 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
490243520 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
491513056 971778848
1463291904 490231808 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1953523712 1423
1953525135 32 Sec GPT table
1953525167 1 Sec GPT header
mac-mini:~ ianpaine$ 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 - 489833880] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 490243520 - 1269536] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [1463291904 - 490231808] Win95 FAT32L
Mac mini, OS X Yosemite (10.10.3), null