some professional software isnt compatible with windows 10 yet throwing unknown errors and constant issues.

and then theres the spying software that some people are not to keen about. forced updates for home users (WGA anyone?)
some devices dont work with 10. printers and peripherals.

on a personal note: i've upgraded to 10.....but linux mint is my default OS.

Or maybe Microshaft should stop using malware to push their spyware service? Win 10 is horrendous ( I have used it). It has few benefits over Windows 8 and even less over 7.

I would have agreed before but because they force updates it breaks some of my programs and there is nothing I can really do about it.