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Level 1

5 points

bootcamp partition renamed untitled after booting in MacOS

Can anybody please help me ?

I had succesfully installed 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.

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

Posted on Apr 5, 2016 11:34 AM

297 replies

Loner T

Level 9

59,471 points

May 14, 2016 11:53 AM in response to ozeegers

Please test with 0C, and change it to the second set of values from Testdisk, verify the MBR and test. We know your old W10 installation boots, but you are missing files.

ozeegers Author

Level 1

5 points

May 14, 2016 12:44 PM in response to Loner T

so I repeat second step gdisk with 0C

what do you mean by change it to second set of values from testdisk ? with the first part of gdisk ?

then overrule MBR with fdisk step with 0C ?

can you give more detail ? i am novice.... thank you

Loner T

Level 9

59,471 points

May 14, 2016 2:26 PM in response to ozeegers

You have two possible GPT4 entries starts and 2 sizes, so four combinations.

I suggest using both starts and trying Size 1, and then using the same starts, using the second set of sizes. and testing the various resulting GPT4 entries.

ozeegers Author

Level 1

5 points

May 15, 2016 1:39 AM in response to Loner T

thank you very much for the table...

I see 3 entries ?

So I suppose I first create a GPT with the first gdisk step using start B1 and then +(size D1) or (end C1) and then use second GPT step gdisk to recreate the MBR.... Then use fdisk to override MBR with 0B or 0C ?

ozeegers Author

Level 1

5 points

May 18, 2016 6:40 AM in response to ozeegers

I have found a lot of my files via EaseUS Data Recovery wizzard. Very useful program.

My PST files are recovered as well as my images.

I think I will stick to macOS !

Is there a way I can reclaim the space bootcamp took for Windows and attribute it to the OS X partition ?

thank you

Loner T

Level 9

59,471 points

May 18, 2016 8:09 AM in response to ozeegers

Do you have a Time Machine backup of OSX?

ozeegers Author

Level 1

5 points

May 18, 2016 8:24 AM in response to Loner T

no, I never used the OS X

now i've installed and customized the OS X that I'm running from the USB drive and I'm liking it very much.

I suppose I have to do the customizing all over again ?

Loner T

Level 9

59,471 points

May 18, 2016 10:08 AM in response to ozeegers

You will need to backup OSX via Time Machine, and erase/restore the OSX which will reallocate all disk space to OSX.

ozeegers Author

Level 1

5 points

May 18, 2016 2:07 PM in response to Loner T

when I backup OSX from the USB drive with Time Machine and then boot in recovery mode and restore the internal harddrive with this image will it be OK ?

Or will all the paths be pointing to the USB drive ?

Loner T

Level 9

59,471 points

May 18, 2016 2:56 PM in response to ozeegers

If you want to reclaim old disk space, you will need to erase the entire internal disk and then restore the backup. The restored OSX will occupy the entire disk and will not have any pointers back to the USB.

Jun 16, 2016 10:55 AM in response to ozeegers

Device Details

Device Name: iPhone

Device Model: iPhone4s A1387

Product Type: iPhone4,1

iOS Version: 9.3.2

Serial Number: DX3M3XXZFMLF

UDID: 1559998fe072b693129600fc3c02fda4986b0630

Model: MF268

Product Version: 13F69

Hardware Model: N94AP

Device Color: white

Region Info: CH/A

CPU Architecture: armv7f

Wi-Fi Address: cc:78:5f:73:ef:a8

Bluetooth: cc:78:5f:73:ef:a9

Firmware Version: iBoot-2817.50.3

Active Status: Unactivated

Baseband Version: 6.0.00

Baseband Chip: 5898465

Baseband Certificate: 2

ICCID: 89630316008304690605

IMEI: 990001949662597

MLB Serial number: DQ540260GHMFMJNB

Subscribe area code: 515

Subscribe to a web code: 03

Password Protection: False

Phone Number: +63 950 376 9059

Product SOC: True

Protocol Version: 2

SIM Card Status: kCTSIMSupportSIMStatusReady

Device Family: 1

Unix Time: 1466088259

Time Zone: America/Los_Angeles

Time Zone Difference: -25200

Chip ID: 279072914696

24-hour System: False

Charging: True

Remaining Power: 97

Purchase Region: CN

Contact: http://www.apple.com/support/contact/phone_contacts.html

Jun 16, 2016 10:58 AM in response to ozeegers

Device Details

Device Name: iPhone

Device Model: iPhone4s A1387

Product Type: iPhone4,1

iOS Version: 9.3.2

Serial Number: DX3M3XXZFMLF

UDID: 1559998fe072b693129600fc3c02fda4986b0630

Model: MF268

Product Version: 13F69

Hardware Model: N94AP

Device Color: white

Region Info: CH/A

CPU Architecture: armv7f

Wi-Fi Address: cc:78:5f:73:ef:a8

Bluetooth: cc:78:5f:73:ef:a9

Firmware Version: iBoot-2817.50.3

Active Status: Unactivated

Baseband Version: 6.0.00

Baseband Chip: 5898465

Baseband Certificate: 2

ICCID: 89630316008304690605

IMEI: 990001949662597

MLB Serial number: DQ540260GHMFMJNB

Subscribe area code: 515

Subscribe to a web code: 03

Password Protection: False

Phone Number: +63 950 376 9059

Product SOC: True

Protocol Version: 2

SIM Card Status: kCTSIMSupportSIMStatusReady

Device Family: 1

Unix Time: 1466088259

Time Zone: America/Los_Angeles

Time Zone Difference: -25200

Chip ID: 279072914696

24-hour System: False

Charging: True

Remaining Power: 97

Purchase Region: CN

Contact: http://www.apple.com/support/contact/phone_contacts.html

bootcamp partition renamed untitled after booting in MacOS