Unable to find an option to deactivate a rule. Sonarqube -7.5(no option)

The rule does not appear to be active in any quality profiles, thus the rule is already deactivated. :slight_smile:

And also does the rules in built-in profiles can’t be deactivated?

Correct, built-in Quality Profiles are immutable. If you want to start adjusting a built-in Quality Profile, you should copy it and begin to change it to your liking.

Thank you Colin.