Hi
I've just saved my PC from an attack (due to my

son

by the way!!!) using AVG, Malwarebytes, AdAware, HijackThis, Rogue Remover and Spy Sweeper combined.
My query is this:
If malware is quarantined, but you have the option to delete, isn't it better to get the stuff off your machine?
Being a paranoid old fuddy duddy

...I feel a lot better knowing that the culprits have been exterminated rather than still being on my PC.
I don't quite understand what the quarantine entails...is it as good as deleting?
Thanks in advance for any advice.