Whatever you do, do not purchase this software that claims to be a great registry cleaner. They will take your money (and quickly too) and then deny you a refund when are dissatisfied. This software is far worse than any of the free offerings online.They say they have an 8 week guarantee if you are dissatisfied, but since I emailed them, the only responses have been: "we've created a new version for you... download this instead" Right. Like I just crawled out from under a rock. Beware people, beware.