Uninstalling all moderations to Kali with a single command/reverting to default

[Zonark777]

Hello, I'm using the latest Kali ISO imaged from a USB with 64bit architecture. I'm very new to Linux and data security but like to jump right into the deep end when learning and am very paranoid. I've looked for a solution to this and can't find one too obvious, apologies if I overlooked something.

The problem; I installed flashplayer to view a video and while I uninstalled it with no issue I am now wondering how I would revert Kali back to its original (freshly downloaded, md5 checked and untouched) condition with a command or utility. I am running it live every time but want to be able to do this just as an added layer of security while running the OS.

[LinuxNoober]

you want to reset to its default means Factory reset ............

Actually you can't reset with one command bcz in linux you have to reset everything one by one like Desktop library system .......

But basically you can reset every package using this command <<

dpkg --get-selections > system.txt

dpkg --set-selections < system.txt

or try a tool etckeeper