Can anybody please help me ? I already posted my problem on the Apple Support Communities but unfortunately without results. https://discussions.apple.com/thread/7522221?start=0&tstart=0
PROBLEM:
I had succesfully updated windows 7 to Windows 10 on my Macbook Pro and ran Windows already several weeks smoothly.
Unfortunately I did not make a backup of my windows files yet (especially PST outlook files).
Today when I booted to El Capitan to connect my iPad to iTunes Windows gave me a message that it needed repair when I tried to reboot to the bootcamp Windows version.
It did not succeed in repairing and only gave my an advanced options menu.
I booted back into MacOS to find that the windows partition was renamed to 'Untitled' and that no files were visible in Finder.
I than ran Disk Utility and selected First Aid on this partition, I thought this was read only to check for disk errors.
Now when booting from Windows it says no operation system available and Disk Utility shows 496 GB empty space on this partition !
I hope not all my files are lost !!
What can I do to repair the bootcamp partition ? I tried to install setup bootcamp files on USB but cannot boot from USB (does not show the USB drive)
thank you !
Olivier
MacBook Pro, OS X El Capitan (10.11.3), Bootcamp Windows 10
[doublepost=1463237602][/doublepost]sudo gpt -r -vv show disk0:
Password:
gpt show: disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168
gpt show: disk0: Suspicious MBR at sector 0
gpt show: disk0: Malformed MBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 1465149167
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 538198808 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
538608448 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
539877984 925009000 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1464886984 262151
1465149135 32 Sec GPT table
1465149167 1 Sec GPT header
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>
2: AF 25 127 15 - 1023 254 63 [ 409640 - 538198808] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 538608448 - 1269536] Darwin Boot
*4: 0C 0 0 0 - 0 0 0 [ 0 - 0] Win95 FAT32L
sudo gdisk -l /dev/disk0
Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>
2: AF 25 127 15 - 1023 254 63 [ 409640 - 538198808] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 538608448 - 1269536] Darwin Boot
*4: 0C 0 0 0 - 0 0 0 [ 0 - 0] Win95 FAT32L
Oliviers-MBP:testdisk-7.0 ozeegers$ sudo gdisk -l /dev/disk0
GPT fdisk (gdisk) version 1.0.1
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Disk /dev/disk0: 1465149168 sectors, 698.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): BE924D70-1CD5-4EDB-9B44-947B2100D347
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1465149134
Partitions will be aligned on 8-sector boundaries
Total free space is 262157 sectors (128.0 MiB)
Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI System
2 409640 538608447 256.6 GiB AF00 Apple HFS/HFS+
3 538608448 539877983 619.9 MiB AB00 Recovery HD
4 539877984 1464886983 441.1 GiB 0700 Microsoft basic data
PROBLEM:
I had succesfully updated windows 7 to Windows 10 on my Macbook Pro and ran Windows already several weeks smoothly.
Unfortunately I did not make a backup of my windows files yet (especially PST outlook files).
Today when I booted to El Capitan to connect my iPad to iTunes Windows gave me a message that it needed repair when I tried to reboot to the bootcamp Windows version.
It did not succeed in repairing and only gave my an advanced options menu.
I booted back into MacOS to find that the windows partition was renamed to 'Untitled' and that no files were visible in Finder.
I than ran Disk Utility and selected First Aid on this partition, I thought this was read only to check for disk errors.
Now when booting from Windows it says no operation system available and Disk Utility shows 496 GB empty space on this partition !
I hope not all my files are lost !!
What can I do to repair the bootcamp partition ? I tried to install setup bootcamp files on USB but cannot boot from USB (does not show the USB drive)
thank you !
Olivier
MacBook Pro, OS X El Capitan (10.11.3), Bootcamp Windows 10
[doublepost=1463237602][/doublepost]sudo gpt -r -vv show disk0:
Password:
gpt show: disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168
gpt show: disk0: Suspicious MBR at sector 0
gpt show: disk0: Malformed MBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 1465149167
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 538198808 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
538608448 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
539877984 925009000 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1464886984 262151
1465149135 32 Sec GPT table
1465149167 1 Sec GPT header
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>
2: AF 25 127 15 - 1023 254 63 [ 409640 - 538198808] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 538608448 - 1269536] Darwin Boot
*4: 0C 0 0 0 - 0 0 0 [ 0 - 0] Win95 FAT32L
sudo gdisk -l /dev/disk0
Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>
2: AF 25 127 15 - 1023 254 63 [ 409640 - 538198808] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 538608448 - 1269536] Darwin Boot
*4: 0C 0 0 0 - 0 0 0 [ 0 - 0] Win95 FAT32L
Oliviers-MBP:testdisk-7.0 ozeegers$ sudo gdisk -l /dev/disk0
GPT fdisk (gdisk) version 1.0.1
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Disk /dev/disk0: 1465149168 sectors, 698.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): BE924D70-1CD5-4EDB-9B44-947B2100D347
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1465149134
Partitions will be aligned on 8-sector boundaries
Total free space is 262157 sectors (128.0 MiB)
Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI System
2 409640 538608447 256.6 GiB AF00 Apple HFS/HFS+
3 538608448 539877983 619.9 MiB AB00 Recovery HD
4 539877984 1464886983 441.1 GiB 0700 Microsoft basic data