Workaround:
http://forum.bitdefender.com/index.php?sho...st&p=151081
When I select a USB drive in Windows Explorer, right click and mouse to the Bd portion of the drop down menu, I get the message that Windows Explorer has encountered a problem.
It tries to find a solution and then closes WE; happens every time. I can't, of course, immunize the USB drive since WE crashes.