How to protect yourself from accidentally clicks on your adsense ads

Is very simple and free to protect yourself from accidentally clicks on your adsense ads.
Open “My computer”, left click on C: (partition were you have Windows installed),
right click on “WINDOWS” folder, chose search.
Tastati la fisierul cautat “hosts” fara ghilimele.
Write at searched file name “hosts” without quotes.
You will find the files “hosts” in system32\drivers\etc.
Right click on [...]