I don’t think you can download from ms if you have just an oem serial key can you? (Well, I think you can down,old, but it won’t let you install and register if you have oem if I’m remembering right? Seems I ran into problems for so e reason because my version. Of windows is oem, but I can’t rerecall. Exactly what the problem was
You can get the ISO from a lot of places. I have a 64-bit Windows 7 ISO stored in the cloud. I can give you a link privately if you want.