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Missing bootcamp win7 after updating the mac to OS X Yosemite

Help!

After upgrading to Yosemite, and now when I ALT Boot Windows 7 and Recovery partitions no longer show up. Is there any ways to get my data in the disk back?

The Disk Utility is like this:

User uploaded file

Following Loner T, I tried some commands, It shows like this:

User uploaded file

User uploaded file

Failing loss the material, here I seek help from Loner T


Thanks ! Waiting online


Windows error loading after Yosemite upgrade

MacBook Air, OS X Yosemite (10.10), dual system: mac and win7

Posted on Oct 24, 2014 6:56 PM

Reply
157 replies

Oct 26, 2014 6:46 AM in response to rubby0913

You do not seem to have a large gap that many others have had between GPT#3 and GPT#4. Did everything work as expected before the Yosemite upgrade?


Can I suggest downloading Testdisk (http://www.cgsecurity.org/wiki/TestDisk) and looking for deleted partition. You can use the link in your post to run Testdisk.


Please post back here if you need any explanation of the steps.

Oct 26, 2014 11:47 AM in response to rubby0913

I have proceeded the following commands:

Try the simple first step first to see if it works.


sudo fdisk -e /dev/disk0

setpid 4

07

flag 4

p

w

y


and now I can only find the windows booting by pressing the option button in rebooting the computer, but I cannot enter the system, it occurs " Missing operating system", also failed is to find the windows partition in the Finder.


After that, I used the testdisk to scan following your instructions in the "Missing Operating system_ " After installing Yosemite, now, I have finished the quick scan, it appears like this:

User uploaded file

By pressing the Enter, it follows like this


User uploaded file


Could you please show me how to do next? Wish you are still online

Oct 26, 2014 9:24 PM in response to rubby0913

Hi Loner T,


I have similar problem after updating to Yosemite, now I can't boot into windows. I updated to Yosemite on my 11 inch Mac air and Mac Pro with no problem, before I decided to update my sons iMac (which has his school work) and ran into this problem. I remembered I use a third party program called Paragon NTFS. Could this be the problem?


Please Help.

Missing bootcamp win7 after updating the mac to OS X Yosemite

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