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 the full screen automatically to Pictures > Screenshots
Press Windows + Shift + S to open Snipping Tool for a selected area
Use the Snipping Tool app to capture a freeform, rectangular, window, or full-screen snip
On some Acer laptops, press Fn + PrtScn if the PrtScn key is combined with another key
Paste the screenshot into Paint, Word, or another app with Ctrl + V
Save the screenshot from the app after pasting if needed