I want to thank Nergal, hazelnut, trium; and nucad for your aid. Unfortunately, none of these instructions have resolved the issue. trium, I have the free version. Hopefully, it will be a simple fix. I have completed each of the instructions to no avail.
Big thank you to Truim. Very clear, although after following your instructions:
ccleaner -> tools -> startup done
tab windows -> is there any ccleaner entry? none
tab sheduled tasks -> is there any ccleaner entry? one
if yes -> select the ccleaner entry -> look on the right side -> disable or delete deleted
Result: After restart CCleaner still starts at system load.