It’s really best to have an Antivirus you have some control over. Some AV by default make all of the decisions without asking you and the result is the problem you’re having.
I use Comodo internet security and have it ask me before taking actions but even then it still makes bad choices and deletes a program that’s perfectly safe once in a while. Most AV software have a feature where you can add a particular program to safe list. There have been times when the only way I could install a certain program was to close comodo down completely, then install the program, then start comodo again. Some AV have a much higher rate of false positives: Norton for example. I also had severe problems with Bitdefender about 4 years ago. It was stopping some Steam games running even when they were added to its safe list!