CLick on: Start Menu
Go To: Run
Type: Regedit
Look For the Keys: HKEY_LOCAL_MACHINE\SYSTEM\CurrentConrolSet\Control \Session Manager\Memory Management\PrefetchParameters
Now Look For The DWORD KEY : ENABLEPREFETCHERA
Its Default Value Is: 3
Change The Value To: 6
Now Close The Registery Editor And Restart Your Computer
Note: If u Change its Value to 1 It'll b verry Slow