Comodo Cleaning Essentials does not work in version 6. KillSwitch is fine, but when I try to scan it gets to 50% and it has not scanned a single file 
How long does it take to get to 50%. Also, does it end up scanning files if you leave it running for a long time, say 20 minutes or more?
I'm asking because this may be related to the bug report which I filed
here.