I don't think this is correct. It is a little hard to tease out perfectly (e.g.: school computers having gone to chrome books in a big way might not be the stat

I don't think this is correct. It is a little hard to tease out perfectly (e.g.: school computers having gone to chrome books in a big way might not be the statistic you want), but globally Windows marketshare has gone from 90% a decade ago to ~%75 now: https://www.statista.com/statistics/218089/global-market-share-of-windows-7/ https://www.statista.com/statistics/218089/global-market-sha... About half of that is to MacOS, but linux and ChromeOS have also made gains.