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The installer created 3 partition - 1 large one and 2 small ones. So instead of running the installer again in normal mode - I logged back into OSX deleted the BOOTCAMP partition (or so I then thought), ran the installer again in EFI and told it to create a partition for itself in the free space and install Windows. I chose the EFI install and went for it, but the installer informed me that it will not install, because the partition has MBR instead of GPT. I decided I will give 8.1 another go - as the partition was there and so I wanted to use it by trying to install over it again. I managed to fix the iMac into booting OSX and forgot about it until today (oh why?!) It started with me creating a BootCamp partition (around 145 GB) for Windows 8 quite some time ago.Įverything was working fine until I decided to upgrade to 8.1 from the Windows store - the installation went fine but Windows never managed to boot again. This is a somewhat similar post to this one ( Can't create partition on free space with Disk Utility) but not quite.
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