Windows 10 was technically vulnerable, but since Windows 10 has drastically better security features, from a defense-in-depth standpoint, having Windows 10 more or less rendered most computers immune in practice. (Likely, the few 10 machines infected were intentionally crippled by their admins.)
Bear in mind, Windows 7 is an OS from 2009, 12 years ago. It's ancient from a computer security standpoint.
Whether you are personal or corporate, you probably should be running either Windows 10, or choose an alternate operating system entirely like OS X or Linux.
Windows 10 was technically vulnerable, but since Windows 10 has drastically better security features, from a defense-in-depth standpoint, having Windows 10 more or less rendered most computers immune in practice. (Likely, the few 10 machines infected were intentionally crippled by their admins.)
Bear in mind, Windows 7 is an OS from 2009, 12 years ago. It's ancient from a computer security standpoint.
Whether you are personal or corporate, you probably should be running either Windows 10, or choose an alternate operating system entirely like OS X or Linux.