I have an old desktop in the basement that hasn't been used in years. I want to get it running again to see if the data on the hard drives is retrievable. When I stopped using the rig I sold the CPU and kept the other parts, so I just need to get a compatible CPU to get it working. The mobo has LG 775 socket and I just want the cheapest CPU that will run any version of Windows, so I can try to access the hard drives. I won't be gaming or doing anything demanding on this rig, really just need it to run Windows. I found a Core 2 Duo E8400 for $19, so I'm planning on going with that one. My question is, will I have any issues running Windows 10 with this CPU? Like a firmware issue with the motherboard or something? If so, should I go with Windows 7 instead? The mobo is a Gigabyte GA-EP43-UD3L. I already have all other components from the old rig, including GPU, RAM and PSU (If it still works).