With all due respect I tried Win10 in a VM and absolutely despised it, but that is subjective and irrelevant.
I have paid for my Win 7 license and that should enable me to 'support' until 2020, that includes 'critical updates' at an absolute minimum, currently I, and thousands upon thousands of other legitimate users are not receiving that 'support', instead we are being coerced in to adopting the 'mighty Win 10' with the lure of a free upgrade & sneaky forced installs via WU.
The fact Microsoft are seemingly intent in forcing users over is sick, but I guess they must meet their 'goal' of 1 billion devices by 2019. I shall not be one of them.
As it stands I am currently VM'ing Linux, if I can find the programs I need and support for my hardware then it's bye bye M$
/rant