How to remove the "garbage" in the physical storage of smart phones without installing anti-virus software and the like?

I suggest you install 360 Mobile Guardian, which is a completely free mobile phone security software, which integrates the functions of preventing spam messages, harassing calls, preventing privacy leakage, accelerating the cleaning of mobile phone systems, and displaying the attribution. Block spam messages and harassing phone calls. Private communication records are encrypted and saved, and the call information is clear at a glance.