Be careful using ANYDVD versions you've not aquired at the official Slysoft site. ANYDVD now writes to the hidden system partition on an XP drive reserved for the Windows operating system. These so called cracked copies of ANYDVD can cause drives to vanish and even more serious problems such from data loss to complete drive failure. Even messing with a genuine copy can cause problems. After your trial period is up buy it or stop trying to use it. p.s. Formatting will not remove the information stored on the hidden partition.