Is there any butten in Avast Free that i can make all the settings to stock settings like a new installation ore what?
There is now ;D
Open avast → Settings → Troubleshooting → Expand the “Restore Factory Defaults” section
thanks 
No Problem 
OT: You may want to hide your email address, as it currently can be seen.
Go to Profile (at the top) then Account Related Settings then check the option Hide email address from public?