Here is a very cool tip for Windows 7 users. By default, Windows Explorer in Windows 7 shows you the new and less useful libraries. If you want to change the launch directory back to the old good “all drives”, do the following steps:

1. Open the Windows Explorer Properties.
2. In the properties dialog box, change the target path to: %SystemRoot%\explorer.exe /e,::{20D04FE0-3AEA-1069-A2D8-08002B30309D}

You can find the full and illustrated instructions here:

http://blogs.techrepublic.com.com/window-on-windows/?p=2568