So this isn't about your computer? Or is this just your way of dealing with them, it's pretty funny. My mom was getting the calls because years ago she fell for the "Microsoft Support" thing.
Here's the thing -- she now has a Mac so no Windows. She finally went off on them and told them to go ahead and do their worst (in much more vivid language). Apparently "reacting like a crazy person" can get you off the lists!