I've been saying all along whenever the "Upgrade now" or "super whizzy windows" stories come along is
"What about us who have millions invested in safety critical stuff that runs on WinXp?"
You cant just 'upgrade' the PC to win10, install the drivers and hope it works because 10 times out of 10, it wont.
And the price of the kit is such that you need years to get back what you paid, and then make a profit.
For example, the factory next door to us bought them selves a spiffy new moulding machine , the price... about 500 000 pounds, now imagine that in 3 years time , m$ go fsck you we're not supporting your OS anymore , upgrade or else, and the machine is rendered useless.
Upgrading your desktop is easy , even throwing it out and buying a new one, but when the control is embedded and has to be proven to work......
As a side note, we have 4 windows powered machines, the manuals state "If the customer attempts to install updates to these machines, the supplier has no liability for any loss or damage that may result"
Possibly explains why we make sure the machines either have the Fanuc OS in them or the controls are based on Linux.....