Just when I got accustomed to 8.1 Windows 10 comes out and now I have to tweak my system again. I actually did like the charms on 8.1 and now they show up on 10's start icon. I upgraded three laptops to Win10 but will keep 8.1 on a couple and couple with Win7. One laptop has trouble upgrading to Win10 from Win7 so I'll keep it as it is. I'm adaptable to the OS but for some people it's a difficult change. It's strange with Microsoft Edge browser some sites don't recognize it as IE.