Arduino IDE wont work... Launch4j Error! Help!

My Arduino IDE starts with the following error. :~

Then it starts and hangs instatnly when I select the ‘Tools’ menu. I am unable to use arduino. =(
I am using it on Windows 7 (x64).

Please Help! :disappointed_relieved:

UPDATE***: Ok... Here's an Update.

I searched trough previous read-only forum and found a solution from user '404' and it works! As per '404''s suggestion, I turned off the Bluetooth adapter of my Laptop and the problem is solved!