[USER=79751]@Zartarra[/USER] thanks for sharing
As far as I know, the ASR rules only apply when Microsoft Defender still is your active antivirus. Probably your group policy settings prevent MD from being deactivated.
I just installed BitDefender Free without problems with Malware Defender on MAX (using Configure Defender to enable all ASR rules).
On a site note: the Online Protection part checking on misused certificates and certificates of non trustworthy issuers (or issuers with misused certificates) is very chatty. I disabled that setting (has a few false positives because it also blocks websites connections of web services using certificates of issuers with a past problem, e.g. Github). Browsers have sufficient (HTTPS) certificate protection.
