Ultimate snake-oil
It is amazing to see something like this still being published. Anybody with the basic knowledge about Windows (I have been writing windows software as early as 1990) knows that the utilities like CCleaner should be avoided. As a REAL Windows specialist said: "At its best CCleaner does not help at all and when things go bad it will render the system useless. The latter has happened to a couple of friends.
Anybody with some maths talents understands that removing a few dozen keys amounting to a couple of kilobytes from a binary tree containing at least tens of thousands of values will not result in even microseconds of search efficiency. As one analyst put it about five years ago: "It may result in, say, 1% performance improvement in some very rare cases but generally the change is either zero or too small to be measured".
Memory optimizers, registry cleaners, misc. erasers etc. are the snake oil of our time. Even disk defragmenters have gone practically obsolete during the past few years.
