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Antrivirus cleaner effectiveness?
I have an ativirus program, that is 90% effective.
How much will it be effective if I use it two times?
1 Answer
- nbsale (Freond)Lv 65 months agoFavorite Answer
90%. If it didn't catch a virus on the first try, it'll miss it on the second as well.
If it took out 90% the first time, and 90% of the remaining viruses the second time, then it would take out 90% + (90% of 10%) = 99%.
Another way to figure that is that 10% survive the first use, and 10% of those survive the 2nd, which would be 1%, again giving 99% effectiveness.
That 2nd approach might make sense for some applications, but not for cleaning computer viruses.
