I have one new laptop with Windows 10 Pro on it, preinstalled. It has random odd behavior like the Start button not working with a left click but a right click will produce a limited drop-down menu. Testing out the wireless monitor option, sometimes it works (i.e., spawns the wireless monitor connect process), sometimes it doesn't. When it doesn't work, it will never work again until I reboot the machine. Not just log out, reboot. Otherwise, it seems half-baked like so many other Microsoft products, better than Office 365 but that's not saying much.