Everything back to Win 7 is a botnet now if you've been applying updates. They all have telemetry now. Best course of action is gettign a clean .iso of Win 7 SP1 and/or finally making the switch to linux.
What about removing the telemshit updates or having a "clean" pirated os?
It's up to you if you want to deal with the hassle of removing that shit, or if you trust a modified pirated install. Personally, I just went with a clean install of a service pack 1 iso and didn't install any updates. I'm dual booting with Manjaro linux so the windows partition is just there for gaming anyway so I'm not too concerned about security.
Naw you are safe using win8.1 when watching your cp and buying drugs on the internet.
I promise you don´t need to get linux and learn about it-security, just use Microsoft products. win 10 is even more safe.