Press PrtSc to capture the full screen
Press Windows key + PrtSc to save a full-screen screenshot automatically
Press Alt + PrtSc to capture the active window
Press Windows key + Shift + S to open Snipping Tool and select an area
Use Fn + PrtSc if your Lenovo keyboard requires the Fn key
Open Snipping Tool or Snip & Sketch from the Start menu and take a screenshot from there