Millions of PC users may still be running Windows 7 Satsuki Then - Jan 1, 2021, 6:32am CST Most people don’t care at all what version of Windows their PC is running as long as the PC works. This is a problem Microsoft faces in trying to get people to update their operating system when new versions of Windows cost so much. Microsoft officially ended support for Windows 7 about a year ago, but lots of PC users worldwide have continued on with the operating system. Exactly how many Windows 7 users are still on the operating system is hard to know. One report says that when Windows 7 reached the end of support last year, about 200 million PCs globally would continue running the operating system. Consulting figures available in data from the US government’s Digital Analytics Program, the report says that as of December 2019, 18.9 percent of Windows PCs were on Windows 7.