In Windows Explorer, or My Computer, you can set the Display the full path in the address bar option by using the Tools menu to select Folder Options and then check the option on the View menu.
Using REG.EXE, built into Windows XP, Windows Server 2003, and later operating systems, or installed from the Windows 2000 Support Tools, you can set this option via the registry:
1. Open a CMD.EXE window.
2. Type the following command and press Enter:
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\CabinetState" /V FullPathAddress /T REG_DWORD /F /D 1
3. You must log off and log on for this change to become effective.