According to Net Market Share, 35.63% of Windows users are still using Windows 7 as of December 2018. Windows 10 has 52.36% of Windows users.
Back in April 2013, when Windows XP just had a year left of support left, only 24.93% of Windows users were sticking with XP. A commanding 62.27% of desktop users were already running Windows 7.
Microsoft has a significant problem on its hands here. And Microsoft enters this home stretch with the biggest ever Windows 10 update mess ever on its hands, too. Microsoft is hardly making a case for Windows 10 to skeptical Windows 7 users.
https://www.howtogeek.com/400783/windows-7-only-has-one-year-of-security-patches-left/Rgds,
Ed