I know of many users who use Windows 8 or Windows 8.1 with a Start Menu replacement because of the changes they don't like in Windows 10 such as forced updates, removal of many settings and customization, privacy-intruding data collection or nothing much of value in Windows 10. However there is one improvement in Windows 10 for those of you who use programs and apps with a touchscreen: the touch keyboard automatically pops up when you tap inside a text field. With a simple free app, you can do this on Windows 8 too.
With Firefox 43, Mozilla added detection of touchscreen devices. If Firefox is running on a touchscreen device, every time a text field gets focus via a touchscreen, the touch keyboard appears. If you are interested in testing this feature but you don't have a touchscreen device yet, you can force the Firefox browser to show the on-screen keyboard anyway.