How to improve computer's working speed ?

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There Are Three steps for improving the computer's working speed.

Step 1:

         A.   Open The Run Window
                Press window key+R 

                      

       B.  write "recent" on the open box, after open press ok button

                           

       
        C.  Now you see many recent files then select all recent file                      and  delete all these file.

        D.  Now Feel many changes in your computer working speed. 
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Step 2:

         A.   Open The Run Window
                Press window key+R 

                      

       B.  write "%temp%" on the open box, after open press ok                        button

                           

       
        C.  Now you see many Temporary files then select all                               temporary file and delete all these file. 

        D.  Now Feel many changes in your computer working speed. 
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Step 3:

         A.   Open The Run Window
                Press window key+R 

                      

       B.  write "prefetch" on the open box, after open press ok button

                           

       
        C.  Now you see many prefetch files then select                                         all prefetch file and delete all these file.

        D.  Now Feel many changes in your computer working speed.

Note: Don't worry only junk files will be deleted after following                    these steps