ERROR: bootstrap checks failed

@dadoonet i have been seeing all the posts and your replies. ALL of them refers to the URL https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html.

Please note, we have already gone through the documentation and the reason we are posting a question here is either I did not understand the document or that doesnt clearly say the steps to fix the issue.

So, if you would please try to help solving the problems rather pointing out the docs it will encourage everyone to use ES. You guys are the experts and developers of the product, we are merely users.

Appreciate your assistance.