[0xCMP]

Look at the latest changes in iPhone hardware for security. Some are saying the iphone is unhackable now.

There are no reasons such improvements couldn't work for Windows and I am guessing this is their best idea for raising the floor of hardware protection they can assume is available.

I agree the push, which is quite disruptive, must be influenced by someone higher up. But I think its as simple as "Windows is insecure" is something they want to make untrue.

[kijin]

So, in order to make Windows more secure, they are leaving behind 40% of their userbase on an unsupported (i.e. vulnerable) version?

[0xCMP]

Yes, I don't see how else they'd make any difference or get close to their goal without waiting 10 years for the computers to be slowly replaced.