I have Norton anti-virus and I've just been looking at the setting, but couldn't find anything with registry cleaners.
I'm not creating slide shows. I'm using Edit Video - Advanced. I have no problem selecting video files and editing them, everything works fine until I go to add background music. It's really bizarre because sometimes it works fine and then sometimes it just closes down on me.
However when I get to the point where I want to add background audio, if I wait a minute before I search for the mp3 I want, it stays alive but if I scroll down the files quickly that's when it seems to close down.