No Middle Name 2

Thanks very much for this comprehensive answer.

Hello. I have installed and run CCleaner Free earlier today. It seemed that everything went as expected. However, after copying and pasting the .txt file of the initial scan, I returned to the initial scan proper. This is the section that allows you to select the duplications and manually delete the chosen duplication(s). I then pressed the icon in the task bar only to find that it disappeared. Is this so? If not, can someone inform me how I can recover/access this? There's an awful lot of stuff there that really needs to be removed, and I would like to begin as early as possible. It seems that I am unable to do this with the .txt file that I have. Thanks