1. First, you would need to open Active Directory Users and Computers. You click on the folder in which you want to add an account, and point to new, and then user. You would fill in the new user's information, such as name and initials.
2. In Active Directory, you input the user logon name, click on the UPN suffix in the drop-down list. It will prompt you to input password and confirm it.
3. Administrators would need to create new user accounts for all users, then join these to the AD domain manually.
4. Administrators will have to manually change the permissions and privileges of the users in order to meet the new established requirements.
5. After converting to the Active Directory, access control will be administered at the object level by setting different levels of access.