I had a windows 7 machine working fine. Then it crashed and wouldnt boot, it wouldnt even post. So I assumed the motherboard went so I bought a new one and replaced it. Still nothing (i gave the old motherboard to a friend and we used it in an old machine and it worked). Then I booted from a usb with ubuntu which worked. So something must be wrong with the drive. I cant do a repair because I can not find my windows 7 disk and I can not download the iso from microsoft because it is oem. I do have another windows 7 machine. Can I use that to make a repair disk? I do have a windows 10 disk but I do not want to upgrade that machine to 10.
Can I install ubuntu and then edit something to dual boot? I've been working with windows for many years but have done very little with linux. Or is waiting until i find my disk the only safe option?