Windows Advanced System Recovery disk (XP / VISTA / WIN7) Live Boot CD 32/64 bit DVD. (disc is comparable with Home Basic, Home Premium, Business, and Ultimate) This disc is designed to fix Windows booting problems for Xp, Vista & Win 7 FOR ALL BIT VERSIONS Recovers from registry corruptions or unexpected system shutdown Comparable with all Windows PCs and Laptops Access to system recovery menu and options of using System Restore or Automated system repair Automated system repair & Command-line prompt for manual advanced recovery.