rebooting during cleanup scan

[problems100]

I'm posting this as a new thread (same title) in the hope of catching a helper's attention. The original post was made on 8th August and I tried "bumping" it twice in August, with no result. One new piece of information to add: I downloaded the latest version of Easy Cleaner and tried the Clean Registry Option. The result was similar to what I have already reported - the computer reboots after just two lines of the listing appearing in the initial scan, ie after less than a couple of seconds - similar to what it does with AVG scan, Microsoft Clean-up scan, etc.
Clearly, something is wrong, but what?