Hi @yarooski,
I think you posted your other problem here:
And I think you also posted on reddit too, no? We try to track a lot of these problems and help people across multiple social platforms.
https://www.reddit.com/r/elasticsearch/comments/kyowf2/cant_start_elasticsearch_service_after_enabling/
Getting TLS setup is the first step for sure and there are hiccups with how operating systems work with security that are inherently tricky. Once you sleuth out and get TLS setup again, if you run into problems with the instructions on how to get detection engine setup there is a more in-depth trouble shooting guide here that might help you out with any gotcha's fwiw: