Beta 2 of Windows 3.1 as noted on the bootscreen.
It includes a half made tutorial which can be run when the GUI Stage of the setup starts or afterwards.
MD5 Disc 1
MD5 Disc 2
MD5 Disc 3
MD5 Disc 4
MD5 Disc 5
MD5 Disc 6
GUI Stage Setup Display Corruption
During the GUI Stage of the Setup, the letters and numbers are not always fully readable, but it can be done if you look.
After the setup it will return as normal.
There are more images available in the gallery.