Hello all, I wanted to let you know that after working with BitDefender since October, 2011. BitDefender refuses to give me a refund even though they still have not provided a fix for the Trufos error that caused my computers to crash. I want you all to know the problems you are in for if you are getting the Trufos error, too. I had to purchase Norton in order not to have to keep reloading my operating syatem after the Trufos errors. Buyers beware.