iAmEros

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Q: How can I repair my Windows Bootcamp?

Hey all..

I tried to shrink my OSX partition today so I could use more space on my Windows Bootcamp. Surprise surprise I have no windows anymore...way I ca

Is there a way I can fix this? I did the "sudo fdisk" thing and my windows now shows up when I boot and hold option, but I get a message saying "no windows operating system found" or something of the sorts. I reaalllly really hope I can sort this without having to wipe it as I had stuff on there I can't replace..

Thanks in advance for any help, it would be extremely appreciated.

MacBook Pro, OS X Mavericks (10.9.5), Windows 7 Profession Legit Copy

Posted on Jun 12, 2015 12:34 AM

I have this question too

Q: How can I repair my Windows Bootcamp?

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by iAmEros,

iAmEros Jun 14, 2015 9:45 PM in response to Loner T
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Jun 14, 2015 9:45 PM in response to Loner T

I really appreciate you helping me out here, even though my case is a little futile haha. I just redid the steps and rebooted after part one and part two without any success. What would you suggest from here?
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by Loner T,

Loner T Jun 15, 2015 3:33 AM in response to iAmEros
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Jun 15, 2015 3:33 AM in response to iAmEros

If the dd does not show a proper NTFS header, then Stellar is not showing the correct headers as they are on disk. Go back to the first original start 667831308 and run the dd command and post the output.
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by iAmEros,

iAmEros Jun 15, 2015 3:55 AM in response to Loner T
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Jun 15, 2015 3:55 AM in response to Loner T

Here's the screenshots;
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by Loner T,

Loner T Jun 15, 2015 4:13 AM in response to iAmEros
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Jun 15, 2015 4:13 AM in response to iAmEros

Was your Windows partition resized more than once?
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by iAmEros,

iAmEros Jun 15, 2015 4:39 AM in response to Loner T
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Jun 15, 2015 4:39 AM in response to Loner T

I originally made the bootcamp 60gb, I upsized it once to I think 160gb or so (without it corrupting) but I wasn't able to actually make the partition bigger this time, I made the osx partition smaller but it corrupted when I went to restart into windows.
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by Loner T,

Loner T Jun 15, 2015 5:41 AM in response to iAmEros
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Jun 15, 2015 5:41 AM in response to iAmEros

You currently have roughly 60GB in a 'lost' state. You can try Windows Startup Repair but the chances are minimal. Bootrec.exe can scan partitions for Windows OS installations. Can you run it using your installation media/startup recovery disk?
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by iAmEros,

iAmEros Jun 15, 2015 7:11 AM in response to Loner T
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Jun 15, 2015 7:11 AM in response to Loner T

I tried using windows startup repair but the partition didn't show up in the box, and I have no idea what drivers i'm supposed to load into it. Can I run Bootrec.exe from osx?
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by Loner T,

Loner T Jun 15, 2015 7:26 AM in response to iAmEros
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Jun 15, 2015 7:26 AM in response to iAmEros

If you are using a Windows Installer disk or a Windows Startup Repair, bootrec.exe should be available when you choose Command Prompt from the Installer/Recovery disk.

Please see https://support.microsoft.com/en-us/kb/927392 .
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by iAmEros,

iAmEros Jun 15, 2015 7:38 AM in response to Loner T
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Jun 15, 2015 7:38 AM in response to Loner T

Yes it's step 5 on this list I can't do as there's no operating system listed, is there a way to bypass this or something?
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by Loner T,

Loner T Jun 15, 2015 7:45 AM in response to iAmEros
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Jun 15, 2015 7:45 AM in response to iAmEros

Can you run bootrec.exe /scanos ?
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by iAmEros,

iAmEros Jun 15, 2015 1:33 PM in response to Loner T
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Jun 15, 2015 1:33 PM in response to Loner T

Okay I've just done this but there were no identified windows installations.
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by iAmEros,

iAmEros Jun 15, 2015 1:51 PM in response to iAmEros
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Jun 15, 2015 1:51 PM in response to iAmEros

At this point I'm happy to do a clean reinstall if there's a way to save a few of my files
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by Loner T,

Loner T Jun 15, 2015 1:53 PM in response to iAmEros
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Jun 15, 2015 1:53 PM in response to iAmEros

In one of your Stellar screen shots, there is a Lost volume which is 8 sectors away from 668331896 at 668331904 and it is called 'Lost Volume 16'. You can redo the two set of Gdisk steps using this as start in Step 7 of the first Gdisk steps and test.

If this does not work, then a Windows re-installation on the current BC partition may be the only option left to test.
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by iAmEros,

iAmEros Jun 15, 2015 2:06 PM in response to Loner T
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Jun 15, 2015 2:06 PM in response to Loner T

Okay I tried that with no success either. Can you take me through how to save my files?
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by Loner T,

Loner T Jun 15, 2015 2:17 PM in response to iAmEros
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Jun 15, 2015 2:17 PM in response to iAmEros
Use your Windows installer, which is built by BCA, and choose Upgrade.

From http://windows.microsoft.com/en-us/windows/installing-reinstalling-windows#1TC=w indows-7

There are two options to choose from during the Windows 7 installation process:
Upgrade. This option replaces your current version of Windows with Windows 7, and keeps your files, settings, and programs in place on your computer.
Custom. This option replaces your current version of Windows with Windows 7, but doesn't preserve your files, settings, and programs. It's sometimes referred to as a clean installation for that reason.

The following links should also help.

https://support.microsoft.com/en-us/kb/932912
http://windows.microsoft.com/en-us/windows-8/restore-files-upgrade-windows-old
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