I have just downloaded Bitdefender (free version from app store) and completed a full scan. I have 13 infections that cannot be quarantined or disinfected. In their help section it gives the opportunity to complete a list of tasks. When on windows I was always told to be very careful about deleting that,that cannot be quarantined or Dis. unless you knew what you were doing leave alone. I havent a clue. Any suggestions please