Change default directory of Windows Explorer

Windows Explorer always opens My Documents folder by default. But it is now possible to 

change this default location by a small hack. 

Follow these steps:-

• Start --> Programs  --> Accessories --> Windows 
  Explorer. 
• Right click on this Windows Explorer and choose properties. 
• Now you can see the 
  Target text field. It reads like : %SystemRoot%explorer.exe. After this line, leave a space and 
  type a comma(,) and type in the location of the folder you wish to open by default. For 
  example you have a folder named MP3 in your C:\ and want this folder to be opened by 
  default, then the change will be like this: 
  %SystemRoot%explorer.exe ,C:\MP3 (leave space before you type comma)

NOTE :- Take the backup of your registry (by one of these Software's) before doing any tweak.