Hi, I am having the same problem as the OP in this thread. http://www.techpowerup.com/forums/showthread.php?t=54365 I have tried the fixes listed in the above thread and I am getting the same error message as 'ktadie' (post 16). I think this is because I am running Windows 7 Professional. Windows explorer crashes when I open my 'Films' folder on my brand new 2tb external HDD. I have about 300 .avi files in this folder and some of the .avi files are several years old. In short I believe I need the same fix given by 'Wile E' (post 7) but updated for Windows 7 Professional. Thanks in advance.