This version of GitHub Enterprise will be discontinued on 2022-02-16. No patch releases will be made, even for critical security issues. For better performance, improved security, and new features, upgrade to the latest version of GitHub Enterprise. For help with the upgrade, contact GitHub Enterprise support.
Converting an organization into a user
It's not possible to convert an organization into a personal user account, but you can create a new user account and transfer the organization's repositories to it.