AVG Uninstall leaves registry keys ccleaner cannot remove

I had AVG Free Edition AntiVirus software, and I uninstalled in. I then ran ccleaner and it finds 2 registry keys that I checked and hit remove but they show up again every time I run ccleaner. They are activeX/com issues with the name AVG. in them. is the ccleaner program not working right?

Read this post about repairing registry permissions

Thanks for the help, that fixed it.