Press PrtScn to copy the full screen to the clipboard
Press Alt + PrtScn to copy the active window to the clipboard
Press Windows + PrtScn to save a full-screen screenshot to Pictures > Screenshots
Press Windows + Shift + S to open Snip & Sketch and select an area to capture
Open Snipping Tool from the Start menu to take a screenshot
Use the Game Bar with Windows + G, then click the capture button
Paste clipboard screenshots into Paint, Word, or another app with Ctrl + V