I threw away my Windows 3.0 floppies pretty much as soon as I upgraded to 3.1. Had the Win98 CD for a while, but mostly because it was stuffed away in a CD case that never got opened. Below is a video from a guy that had install disks back to Windows 1.0 and went through all of them, started in DOS, on a virtual machine. It’s a 10 minute trip, and one that I remember taking a lot longer to actually do.
Upgrading from Windows 1.0 to 7