To display drive-letters, use these steps:
- Click Start, Run and type Regedit.exe
- Navigate to the following location:
- HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer
- If not already exists, create a REG_DWORD value named ShowDriveLettersFirst
- Double-click ShowDriveLettersFirst and set its Value data to 0/1/2/4 value
- Exit the Registry Editor
Here are the other possible data for ShowDriveLettersFirst registry value:
- 0: how drive letters after description (default)
- 1: Show network drive letters before description, and local drive letters after description
- 2: No drive letter is displayed
- 4: Show drive letters before description
fonte: http://windowsxp.mvps.org/showdrivelettersfirst.htm