I found this problem when I was using other cleaners also & that's how I came across CCleaner because I thought THEY were faulty. (I could not delete them manually) Instead I think their (mine) were infected with something. They were usually Gifs that wouldn't delete. So I found a "workaround" & made a shortcut to the temp folder which I keep on my desktop & use my "Eraser" program to erase them. It's free.
DON'T USE IN PLACE OF CCleaner!!
Just for those few leftover temp files when the need arises. Sure hope I'm not breaking any rules here by putting the broken link here. Delete the spaces. http: //www. heidi .ie/eraser /download .php
Hope this helps, signed, a user who likes & uses CCleaner meadowmuffin
FIGHT THE POWER
"To be nobody but myself-in a world which is doing its best, night and day, to make you everybody else-means to fight the hardest battle which any human being can fight, and never stop fighting"
ee cummings (1894-1962)