The easiest way is if you can get an old computer running. It is tough to even get a computer with windows 7 or 8 now after microsoft went on a windows 10 product campaign a couple years ago. You can do an emulator, but since it is technically against copyright law to use one (if you use a pirated windows ISO) I am not going to risk getting banned explaining it to you. You can google search it if that is something you want to do. You can legally use an emulator if you happen to have a disk of an old version of windows lying around.