Jonnyapplefreak

So my windows killed itself recently and so I go to startup my pc and it says missing operating system. I then download one of those windows iOS copies onto a flash drive plug it in and start my pc up again. I go through the process until it ask me what drive id like to download it to and my ssd and hard drive say my disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks.