Windows 10 still contains the Control Panel. Some settings appear only in the Control Panel, some in the Settings app, and some in both. Here’s how to find the Control Panel, which is a little more hidden than it was on Windows 7.
Windows can rotate your screen without any extra software. This is especially useful if you have a desktop monitor that rotates. Many PCs have hotkeys that can rotate your screen, too, and these are easy to press accidentally.