Windows Print Screen - The PrntScr Key

Capture the screen, or a window, and paste it into a document.

In brief

Print-Screen (may be PrtScr, or some similar abbreviation)

• this copies the screen. Then paste into MS Word, Picasa, Gimp, etc.

ALT, then Print-Screen together.

• this copies the active window. Paste as above.

Windows-Key, then Print-Screen together.

• this copies the screen (takes a screenshot) and save it to a file in My Pictures/Screenshots

Details here