Too Long; Didn't Read
Windows 7 has recently joined the club of all Windows operating systems that Microsoft is no longer supporting with security updates. Microsoft might still be releasing critical updates for Windows 7 even after the end of its support. The longer you stay on Windows 7, the more security risks will show up. The best thing for you to do is to upgrade to Windows 10 and use a Windows 7 virtual machine on Windows 10 to run software that doesn't run on 10. If it's possible, keep off your Windows 7 computer off your network.