On Windows 10, there are several error messages made by Microsoft to warn the user about ongoing technical issues in their system. Every error message and code have their own meaning, and they always represent issues. The Active Directory domain services unavailable is a pretty known error message among Windows users, and this error has been a warm topic on software forum sites. If you are also facing the same error message, then you have landed on the right place because this article will help you in troubleshooting it. Let’s fix it.