Windows 8.1 - User's Guide

    
!         .
!              
  
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 
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 HP     
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    HP.
:            
  .
               .

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            :
    
     
        DVD
 BD)   (
  Disk Defragmenter)    (
     
           :
  .
             .
 
      :
      .
   
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    .
    