The problem is consistency.

Keep calling the police. If they don’t want to do anything I’ve found that telling them if they don’t help you that saying something like “okay well me and my mates will ‘sort him Jim out’ ourselves” kicks them in to action.

I did something similar 2 years ago when I found the address of a guy who stole my bag. They didn’t want to help until I implied I might confront him myself, possibly with a weapon.

I mean that only matters for people like us.

99.99% of the Windows user base doesn’t give the tiniest semblance of a shit about any of that. Hell I run Windows on my gaming pc still and have never had cause to do any of that.