For folks still running Windows 7, Microsoft has it scheduled for End of Life in exactly 1 year - https://support.microsoft.com/en-ca/help/13853/windows-lifecycle-fact-sheet

Not such a big deal if you have 1 or 2 machines at home to manage, but if you are an enterprise with hundreds or thousands of Windows 7 machines, it's really time to start that migration project.  If you're still running Windows XP, you're in even deeper trouble!  If you've got business apps keeping you at W7 (or XP for that matter), it's past time to consider an update or migration to better applications!

The difference I'm seeing between companies that run Windows 10 / Office 2016, and companies that run Windows 7 and older versions of office is a significant difference in rates of malware infection.  Maybe start your project by updating machines as a standard first response to malware incident response?  Or make the decision that it's better for the business to pay for updates, as opposed to paying ransomware (and maybe not even getting what you pay for in that case)? 

Haopy updating! 

===============
Rob VandenBrink