Changing CMD Prompt Directory
Follow these steps
(1) At command prompt, type regedit.exe
(2) Navigate to “HKEY_CURRENT_USERSoftwareMicrosoftCommand Processor
(3) In the right hand panel, modify Autorun. If there is no Autorun present, Click Edit-> New->String Value
(4) Call it Autorun and type “cd” if you want to set it to C: (provided Windows in installed on C drive). Say to want it to be C:master, type cdmaster