
According to Avast, the operating system launched in 2009 is currently powering more than 56 million computers where its antivirus product is installed, and this means a share of no less than 48.35 percent.

While it’s important to note that these figures come from computers running Avast, they do align with the statistics provided by research firms whose main activity is monitoring operating system usage, so there’s a good chance these are accurate.įirst and foremost, there’s leader Windows 7. Security company Avast has published global Windows usage data as part of the PC Trends Report (PDF document) for the first quarter of 2017, revealing that Windows 7 continues to lead the market with a share that’s close to 50 percent.
