CCleaner wasn't that big to me until my old laptop got infected with a metric ton of malware (not literally.) i tried malwarebytes and windows defender and everything I possibly could have- except CCleaner. I asked my friend who was some sort of tech wiz (I am too, but he's more of a virus hunter) and he recommended this program. Not only did I clear out over half of the malware (there was some that had to manually be searched for and executed at the source) but I also removed like 4 gigabytes of useless crap. Even though I am currently on a new gaming computer, I still use it today and in fact just ran a scan and cleared a bunch of stuff out. This is for the people debating on whether to get it or go for malwarebytes or some other bigger program. Sure you can get those, but you won't have the whole experience unless you get ccleaner.
