How is it blocking, e.g is it Alerting (attaching a screenshot might help) and or you are getting an error message ?
Sorry, included screenshot is the ACC, as you can see the frequency and temp to processor is blocked.
In the premium version of Avast i had to uncheck sensor blocking to allow this, but i downgraded to free version and i can not longer change that setting.
What is happening is a silent block of the 2 sensors, and Dell sent me here to get help. Sorry i wish i knew more. (uninstalled, repaired, reinstalled everything, updated... ... ...
I have added ACC to the general behaviour shield exceptions though and launched as admin all that. Just hoping someone can point me in the right direction.