I am trying to reinstall windows 7 from 32 bit to 64 bit. I have tried downloading the iso from microsoft but their usb/dvd download tool doesn't recognize it. I have also tried downloading the exe files but they say that the files are read only even though I change that setting. I have tried putting the iso files on a usb and cd/dvd to try and boot it that way but my computer goes through the boot order and starts my os after not reading the discs. Please help!