What version of Delphi should I install?

Question

Delphi

I used to use delphi 7, then 2009 rad I
demolished everything
Then I switched to c#, but delphi is not enough
What version do you have installed and where can I get it without viruses?
For example, in 7 there was a virus, which was then compiled into each exe, I remember there was a very contagious thing, everyone had this virus