Windows 3.1 was very popular for PCs of the time and the Windows 3.11 For Workgroups release added networking support. The 3.11 release did also contain a number of bug fixes over 3.1, so any users looking to try Windows 3.1 should use the 3.11 release instead.
This release also requires a 386 CPU. For 286 support, Windows 3.1 or below must be used.
Developed by: Microsoft
Requirements: 386 CPU, 1MB RAM