To instal windows 3.1 you must first have dos installed. you can do this with the files 


step 1 use Floppy Image.exe to "Burn" "Dos6.22 disc1.img" file to a flopy disc
step 2 insert the disc into the computer (and restart it with the disc in the dirve) and follow the promps
when propmted to insert disc 2 "Burn" "Dos6.22 disk2.img" with floppy image and do the same with disc 3

once you have dos instaled and running "burn" the first disk of windows "win3.1 disc 1.img" and insert it and type a:/setup you should be able to figure it out from here 

happy windowsing :)

oh, BTW thares a dos boot disk included for no real reson (you dont actuly need it)  :)

And also, MS-DOS likes a perfectly empty hard drive.
You're on your own if you try to dual-boot with it...
If you have any errors while installing (ex. asking for
a floppy that is inserted), try reformatting the hard disk