My notebook came with Window 10 and the information I get is that is was designed for the new Microsoft Edge browser. I had a terrible time getting to google to go check my gmail. Windows 10 killed my old laptop when I upgraded, all it can do is blink between black and the desktop. It takes up a lot of memory and may leave your computer unable to function. Is Cortana driving you nuts butting in? I tried to shut her off but it didn't work. My zoom goes from tiny to gigantic without me doing anything to cause it too. Sorry for your troubles. I hope they are fixable.