“Windows cannot be installed on to this disk. The selected disk is of the GPT partition style”

Happy Crayfish

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I'm having a problem with installing windows 10 on a MacBook Air.
When starting the windows setup, it tells me to select a disk however I can't select any of them to install windows to, because “Windows cannot be installed on to this disk. The selected disk is of the GPT partition style”.

The weird thing is that I converted one of the portions to be NTFS, and according the Mac OS disk utility it is NTFS :
Seq7bOz.png

What am I doing wrong?
 

Happy Crayfish

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I want to dual boot Mac and windows though, and I assume deleting all portions would remove my Mac OS.
 

Happy Crayfish

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As far as I know it shouldn't need a second drive, you just need to partition it and it should work, but I'm starting to doubt all these google searches now >.>
 

EDab

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no Legacy mode. as far as I know, a GPT disk can only boot in UEFI mode. check if the UEFI mode is enabled and try format the drive at the Windows Setup screen.
 

Happy Crayfish

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How do I check if UEFI mode is enabled?
And I have tried formatting at windows setup screen but it gave me the same error. :/