Windows 8.1 - User's Guide

   
    .
   
 
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    
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          .
.        :
   
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  
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    )   .(
.     
  :
   
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  
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    )

   .(
      
           :
▲              
 .        .
––
.          
  Settings) .(
.   Screen)  (   .       
    
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 
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     .      
 
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 .       
   .
    
  :
.             Settings) .(
.   Screen)  (   .       .
:   Windows  
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    Power Meter)   (
          Adjust screen brightness)  
 (     Screen brightness)   ( .
    