You’ll create either the 64-bit or 32-bit version of Windows 10 that’s appropriate for your CPU. When burning a DVD from an ISO file, if you are told the disc image file is too large you will need to use Dual Layer (DL) DVD Media.Ĭheck these things on the PC where you want to install Windows 10:.We recommend using a blank USB or blank DVD, because any content on it will be deleted. A blank USB flash drive with at least 5 GB of space or blank DVD (and DVD burner) if you want to create media.Sufficient data storage available on a computer, USB or external drive for the download.