What is the best choise to set up VRDB, to generate???
Depends on your choice…
Do you use a screen saver? Then this could be a reasonable choice.
Don’t? So, check for the ‘idle’ time generation… (i.e., VRDB will be generated when there is not keyboard or mouse activity). 
Hi Tech, no i dont use screan saver…hmmm, i will check for the ‘idle’ time generation.The thing is that my brother disabled VRDB generation, and i am not sure if this is bad or just very bad ??? lol thanks for the advice
This is very bad… you’ll lose the capability of restoring infected executable files 
Great, just what i need… i gess that there is nothing i can do now :
It most certainly is a bad thing to disable it. I understand your not wanting to run more things on your system
I never use a screen saver I just go into standby, so with VRDB set to screen saver it will never generate. I prefer to use the Generate Now option every two weeks as part of my regular system maintenance. That way it runs when I want it to (quiet period) and is usually done in a little over 8 minutes on my system. It may take a little longer on yours so do it when you are about to have a coffee or meal break.