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Windows 10 Bootcamp dual boot problem after El Capitan upgrade

Hi guys,

I have an Early 2013 Retina Macbook Pro (2,6 GHz Interl Core i5, (GB DDR3 RAM, 256 GB SSD) computer.

I used OS X Mavericks with Windows 10 Bootcamp and it worked perfectly until I upgraded to OS X El Capitan (I skipped Yosemite).

Now in the boot menu I can see the Windows partition but if I start that I see "Missing operation system" message.

I tried some of the previous discussions:

https://discussions.apple.com/thread/7254934?start=0&tstart=0

https://discussions.apple.com/thread/7200751

http://nerdr.com/bootcamp-partition-lost-repairing-mac-partitions/


but none of them made any result.

I guess I should do some magic with gdisk and the section numbers but I'm not enough by myself to do that, so could you please help me? I can post any result of the gdisk commands to make this work.


Thanks!

Posted on Oct 7, 2015 1:34 PM

Reply
63 replies

Oct 9, 2015 6:43 AM in response to Loner T

Okay, I successfully managed to run sfc scannow and the oiutput is the following:


"Verification 100% complete.

Windows Resource Protection could not perform the requested operation."


Your link says that in this case I should run sfc in safe mode. But I'm running it from an installation drive, so how could I do that? I also checked that the PendingRenames and PendingDeletes folder are exist in the specified folder.

So what to do now?

Oct 9, 2015 7:20 AM in response to profendre

In my case the drives are the following:

C (BootCamp) - existing windows installation

D (WinInstall) - my windows installer pendrive

X: (Boot) - the temporary created boot drive.


I ran c:\>sfc /scannow /offbootdir=x:\ /offwindir=c:\Windows

After a while I was getting this:

"Windows Resource Protection found corrupt files but was unable to fix some o them. Details are included in the CBS.Log windor\Logs\CBS\CBS.log."


I checked the log but I don't know what to do with that.


I tried to manually overwrite winload.exe as your link suggests but it's still can't boot (and still says that \WINDOWS\system32\winload.exe is wrong. ErrorCode:0xc000000e

Oct 12, 2015 1:01 AM in response to Loner T

Here's the output of X:\>dir /s /p sfc.exe


Volume in drive X is Boot

Volume Serial Number is D60A-0DC2


Directory of X:\Windows\System32


07/10/2015 02:30 AM 42,496 sfc.exe

1 File(s) 42,496 bytes


Directory of X:\Windows\WinSxS\amd64_microsoft-windows-wrp-integrity-client_31bf3856ad364e35 _10.0.10240.16384_none_333f3eeb85f37c69


07/10/2015 02:30 AM 42,496 sfc.exe

1 File(s) 42,496 bytes

Total Files Listed:

2 File(s) 84,992 bytes

0 Dir(s) 533,745,664 bytes free

Windows 10 Bootcamp dual boot problem after El Capitan upgrade

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