With some more trial and error I have found that even when Logged in as ADMINSTRATOR you must EXIT ERASER then (right click) on Eraser and RUN AS ADMINISTRATOR. I.e., not enough to just be logged in as adminstrator.
Yes, this is a complete show stopper. I am the adminstrator. I log in to my own PC. I log into to eraser as my administrator login. Every time ... I cannot even clean up a drive. Please HELP ... !!! I cannot use Heidi anymore and I will try anything else now unless there is an answer.