I have DOS 6.2 on disk. Win 3.1, 95, 98 and 98SE, and yes even ME, Win7, Vista. 8.1 still on a dual boot laptop I never boot too, I just use Mint. Win 10 on 2 machines. 1 main desktop still have work stuff not yet on Web, and Dual boot gaming Tower.
I could gather all the parts I still have...