Many Windows 10 users are looking for a way to open the old Display Settings applet. In Windows 10, Microsoft replaced it with a new Settings app. It is a Metro app which takes over some options of the classic Control Panel, including Display Settings but not all of them. In the Settings app, you cannot do many things which were possible in the old (classic) applet. Here is how you can still open the old Display Settings in Windows 10.
In Windows 10, the classic Display options context menu was replaced with the new Metro app called "Settings". The Settings app opens when you click the item "Display settings" in the Desktop context menu. It is possible to get the classic Display settings applet back in the Desktop context menu. If you like it more than the Settings app, follow the instructions in this article.