Hello guys! I'm kinda new here so please bear with me if i post this in a wrong section.
My problem is after scanning the checked boxes i preferred, i noticed that there's alot of my system's temporary files are left behind(almost 2gigs) and ccleaner wouldn't remove it. Please take note i checked the temporary sys file box.
Generally: files that are in use cannot be deleted. If you had open programs when running CCleaner the temp files that they were using wont get deleted. Files less that 24 hours old also wont get deleted unless you select that option in CCleaners advanced settings.