That assumes 10 was good and misses 8.1.

Also 95/98/me were a different line from NT/2000.

It sounds like a good theory but there isn’t much substance to it.

> That assumes 10 was good and misses 8.1.

I find this to be a mostly valid assumption, and 8.1 shouldn't be counted separately from 8 just as Vista SP2 should be counted any differently from Vista (Vista was mostly fine after companies fixed their drivers and Microsoft toned things down a bit. 7 just drove that home and put some necessary distance between itself and Vista).

> Also 95/98/me were a different line from NT/2000.

I fail to see why this matters.