Use the Snipping Tool !

Quickly grab a screen shot or just capture a portion of the screen…. It’s easy! An often over looked tool hides quietly in the accessories folder… the Snipping Tool. You can capture any of the following types of snips: Free-form Snip.  Draw a free-form shape around an object. Rectangular Snip.  Drag the cursor around an object to form a rectangle. Window Snip.  Select a window, such as a browser window or dialog box,