How to capture current screen as image file
Press PrtScn or Print Screen on your keyboard 
 
  
 
  
 
 
  
Open Paint by clicking the Start button Picture of the Start button, clicking All Programs, clicking Accessories, and then clicking Paint.
 
 
  
 
  
 
 
  
In Paint, on the Home tab, in the Clipboard group, click Paste (Or Ctrl + V)
 
  
Save the image on your desk top.
  
Attach the image to your mail 
 
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