Yep, We’ve all been there. Some stupid program locks a file on your USB key and the eject process becomes useless. Next, you’re sitting there going, “Hmmmm, should I just bite the bullet and remove the key manually”. You could, but then you’ll be tempting fate and you know what they say about that Murphy guy :-).
Enter EjectUSB, THE FREE Util to let you find the culprit process (you know the one locking up your key) and kill it, hence freeing up your key to be properly ejected. Have Fun and be safe!!!