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I have this strange problem, where I have two Windows installed on my MBP in two different partitions

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Untitled Windows is Win8, Bootcamp windows is Windows 7 and Mac OS X

Whenever I choose to boot from any of the windows disk, the MacBook always boots from Windows 8. No matter what startup disk is set! And on the boot screen only MAC OS and Windows are shown, another windows options is missing...

How do I fix it? I don't want loose existing Windows 7 partition

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I'm betting the windows boot loader was overwritten and might not recognize the windows 7 install. – skub Jan 25 '12 at 3:18
Don't bet too much, skub. The effects of hybrid MBR partitioning are still in the running and still have fairly good odds. Of course, the questioner hasn't provided (in the question) both the output from diskpart's list partition and list disk commands in Windows and the output from diskutil list in MacOS, so there's not enough information supplied for anyone to know. – JdeBP Jan 25 '12 at 12:28

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