bootcamp partition renamed untitled after booting in MacOS

Discussion in 'Windows, Linux & Others on the Mac' started by ozeegers, May 14, 2016.

  1. ozeegers macrumors newbie

    Joined:
    May 14, 2016
    #1
    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
    --- Post Merged, May 14, 2016 ---
    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
     
  2. ozeegers thread starter macrumors newbie

    Joined:
    May 14, 2016
    #2
    As you can see on the thread in Apple Support we managed to find one version of windows and made it bootable but this was my old version of windows ? with old emails ? There must be a much bigger partition with the new one on it !

    In the meanwhile I getting to like OS X so much that I think I will switch to Mac OS for the future but I much so much like my emails back !! ;-)
     

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