Microsoft Windows "Market Share" in USA Down to 40% According to Government Sites or 31% Overall
Vista 11 will soon turn 5 (in summertime, the fake 'leak'). Based on the US government, only about one in six Web sessions is from Vista 11. "There were 2 billion sessions in the last 30 days," it says, so the dataset is extensive.

Based on statCounter, iOS is now about as big (or widely used) in the US as Windows:

The world is changing, so do Americans. █
