I fell for the sales job, bought the pro version, used the driver updater, and now my sound card won't work. I can't revert. I can't uninstall the bad drivers, and now I have no sound. I'm an IT professional and I've fixed more than a few system problems in my 40+ years with computers. This is just a dead end, and I can't begin to forgive myself for buying this product. If any staff is reading this, please contact me.