Strabo

That does not answer my question at all. Essentially Norton is saying this: "If you pay us to do the same task (of junk cleaning) as CCleaner, we will find the following quantities of junk (more than CCleaner finds), and will make your PC run more sweetly." There is no question of settings, or of virus-finding. Either Norton is lying, or they can indeed find more "junk" to remove.

I have been forced to buy Norton Antivirus for my Windows11 PC , because it locks up with the ZoneAlarm antivirus software that I used and liked for years. Norton has many irritating habits, notably nagging me to buy its advanced features that duplicate what CCleaner does. Immediately after CCleaner has done a thorough cleanup Norton claims to find "7172 unnecessary files and applications that slowing down your PC" CCleaner staff should investigate this difference and either (a) call out Norton for sneaky scaremongering, or (b) clarify what issues Norton regards as significant and CCleaner does not.