I use a virtual machine, it lets you run any operating system you want on your existing computer. You just need your original installation disks and serial no's. You then have to install all your programs as you would on a separate computer. I have win xp on my win8 laptop. I installed win7 on my daughters new win10 laptop, but after I installed widows shell (
http://www.classicshell.net/ ) and set the interface as win7 she doesn't mind using win10 now.
https://www.vmware.com/au/products/w...valuation.html