First-off I want to say Hello! I am new to this site.
I recently purchased a few Dell Desktop computers to scrap for the precious materials. Some of these were in working condition when removed from service, but had hard drive wiped. I don't know what OS they had before but I would like to have Windows 7 or newer in them. What would I need to do to make these whole again and running? Any suggestions would be appreciated. These are Dell Optiplex GX110.