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 in Pictures > Screenshots
Press Windows + Shift + S to open Snipping Tool and select an area to capture
Open Paint or another image app and paste with Ctrl + V if the screenshot is on the clipboard
Save the pasted image with Ctrl + S
Use the Snipping Tool app to capture and save screenshots manually