Capture screen in Windows 10
Same as previous Windows, in Windows 10 if you want to make screenshot/capture by pressing Prt Scr (Print screen) key.
Open screen that you want to capture
Press Print screen key, it will be copied to clipboard. Paste it to the picture editor (Ms Paint, Photodhop, etc) or Ms. Word, etc.
Press Alt + Print Screen to capture only active window.
To make automatic generate new file (screenshot...png) press Windows (Windows logo)+ Print Screen. It will generate png file in folder Pictures\Screenshot .