Windows (Print Screen): Press `PrtScn` to copy the screenshot to clipboard
Windows (Full screen, file): Press `Win + PrtScn` to save a screenshot to `Pictures > Screenshots`
Windows (Active window): Press `Alt + PrtScn` to copy the active window to clipboard
Windows (Region): Press `Win + Shift + S`, select an area, then save in the prompt or paste elsewhere
Windows (Snipping Tool): Open “Snipping Tool” or “Snip & Sketch” → choose mode → capture → save
Mac (Full screen): Press `Command + Shift + 3`
Mac (Selected area): Press `Command + Shift + 4` (drag to select)
Mac (Window): Press `Command + Shift + 4` then press `Space` (click a window)
Mac (Screenshot toolbar): Press `Command + Shift + 5` → choose capture type → capture → save
Chromebook: Press `Ctrl + Show Windows` (full screen)
Chromebook (Partial): Press `Ctrl + Shift + Show Windows` (drag to select)
Chromebook (Screenshot to clipboard): Use `Ctrl` variants depending on device settings, or paste directly after capture