Clear Your Computer Memory

Here is a trick, This will clear the contents of the Cache and Physical Memory which is filled with junk values.
Open Notepad and paste the following code in it :

%windir%\system32\rundll32.exe advapi32.dll,ProcessIdleTasks

Save this file as a .bat file. Run this command whenever you feel your computer has become a bit tired or when it starts to run slower then usual.