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Fusion 5.04 causing hybrid MBR to become protective MBR?

Hi all,

I'm using Fusion 5.04 on a mid 2012 rMBP 15" with Windows 8.1 installed in Bootcamp.

A couple of weeks ago I imported Bootcamp as a vm in Fusion.

Within 2 days of using the Bootcamp vm I attempted to boot the actual Bootcamp installation and booting failed.

Having booted back in to OSX (Mavericks) I fired up gdisk and, to my horror, I saw that the hybrid MBR had suddenly become a protective MBR. No wonder Bootcamp wouldn't boot.

Anyway, I put it down to "whatever" and created a new hybrid MBR with gdisk and all was well again.

Just now, after firing up the Bootcamp vm almost every day since then, I decided to boot the actual Bootcamp installation to test a few performance figures and guess what!

Windows wouldn't boot.

After booting back in to OSX again and firing up gdisk I discover, yet again, that my hybrid MBR has become a protective MBR again.

This is definitely not user error. This seems to be caused by Fusion, but I have no idea how it could cause it.

I will manually re-create the hybrid MBR again and Windows will boot - I have no doubt, but I don't want to have to do this every time I boot the Bootcamp partition after using the vm.

Has anybody seen anything similar?

Any ideas?

Thanks :slightly_smiling_face:

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