What I mean is that alot of the time when I go use a browser and then use CCleaner to clean up what space it used up, it doesn't return to the original amount that it had before. For example, I had slightly 18.5 gb free on disk C yesterday. Now, after deleting some stuff manualy, it's just above 18.4, before cleaning it like that it was 18.33. I know that sometimes after I turn the computer off the amount of free space goes up slightly off it's own seemingly (sometimes, while someone else wasn't using the laptop, it went up by 2 GB each time) , but I'd like to know whether this is normal, or if there's something I'm missing.
I also use windows cleaning options after using CCleaner sometimes, just in case someone would suggest trying them.
Would be realy gratefull for any answers, as this sort of freaks me out.