Just release a friggin' Post-SP1 rollup for Windows 7.
I don't think Windows 3.1 was a flop. It was the version that many people used for their first experience with Windows. Windows 3.11 was a minor update. It should barely count. And you left out...
I thought one issue with PS4 sales during Black Friday was lack of inventory. Xbox sold more because more were available on Black Friday.