Been there! I had the same struggle earlier this year. After wasting hours on fake guides, I finally found the one thing that actually worked — I downloaded the activator from  https://kmspico.tech It’s updated for all the latest versions, including Office 2021, and it’s clean. You just run it once, click activate, and that’s it. No weird processes, no system slowdown. I’ve used it for months and everything’s still perfect. Highly recommend it!

That’s exactly what I needed — really appreciate it!