On my computer Windows8 is installed and I didn't want to delete it yet.
But Windows8 uses secure boot and UEFI.
So in my BIOS I disable secure boot and then choose something like Legacy BIOS.
Then I only see my GRUB and no Windows8.
So my way to switch is with the BIOS (but I'm always in Mint so no problem for me).
There is a possible UEFI install, but I don't know if that is simple.
My choise is to leave it the way I described.
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