Press PrtScn to capture the full screen
Press Alt + PrtScn to capture the active window
Press Windows + Shift + S to open the snipping tool on Windows
Press Windows + PrtScn to save a full-screen screenshot automatically on Windows
Press Command + Shift + 3 to capture the full screen on Mac
Press Command + Shift + 4 to capture a selected area on Mac
Press Command + Shift + 5 to open screenshot options on Mac
Press Power + Volume Down on most Android phones
Press Side Button + Volume Up on iPhone with Face ID
Press Home + Power on older iPhone models
Open the screenshot tool from the device quick settings if available