Does not empty the recycle bin

When I run the CCleaner the recycle bin is emtied it seems, but if I rerun, CCleaner has once again removed the same files, although they should be gone. When I look more closely what files there are that the program says are cleaned, total size is over one GB big.

You could try the Corrupted Recycle Bin Fix:

https://community.ccleaner.com/topic/42673-corrupted-recycle-bin-fix/