protect your pc from hang

Start Menu -> Run -> Regedit
Look for the Key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters

Now Look For The DWORD KEY : EnablePrefetcher

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 and those who already have 3 then nothing to worry.

Take registry backup before applying any chnages to it.(for Newbies)