
Official data from Microsoft.
After an error with Vista, Se7en was met by users as a second coming, and it really turned out to be better than its predecessor: less annoying the user, faster and more polished, more compatible with various hardware and software.
Initial sales results and reports of a busy market share showed that Windows 7 is on the right track and can meet expectations. Today it is clear that this OS will be one of the most successful products in the history of Windows, since it already took 10 percent of the market share, approximately 3 months after its appearance on the market.
Vista currently holds about 20% of the market, while Windows XP released nine years ago still holds 60-70%.