Ok thanks, but i've got one more problem. I totally forgot to put it in the post xD. I've got a problem with the bootloader. When i boot mac os from the usb drive it works fine, but windows does not work. I've got around 9 windows icons in clover and any of them works. The only way to start windows is by closing clover. Also, when i remove the usb drive, clover boots up, but i can't get access to any of the os in it. I can't use mac and windows as well, and i can only access windows by doing the same thing as before. Is there something i can do about this?