my computer has been freezing up while shutting down. i’ve checked running programs,viruse scans, defrag, clean disk, and it has happened again. the freeze up is a hit and miss. moslty miss but does happen. starting over may be my only option unless there’s something else.

i am trying to get rid of my quicktime player. i was getting rid of it but to do this i need to preform a clean disk. any ideas what that is and how do i do it, thanks