Originally Posted by SyveRson
Except CCleaner is free?
I think it makes my computers boot a little bit faster, and that's about all it does. Still I think it's real.
Time it, I'm betting you can't find a difference. You might get it to boot quicker one time, it might go slower another, you never get the same boot time. At least, it's highly improbable.
This will follow the concept of having fun, if you believe less time is passing you will feel like less time is passing quicker. Our minds like to fool themselves, we don't know why and probably won't ever find out. You also find the same concepts with optical illusions, where your brain intentionally lies to your conscious. Why? Nobody knows.