I just finished loading windows 10 from the total rebuild button and after doing so I do not see the users and local groups icons in management. I am trying to add a new user to the local admin group but the groups icon is not showing up nor is the users list where you add a user? I did not see it in features to turn on either.
This can happen if recovery partitions aren't removed before some corporate installs are done.
Otherwise try Win+R > lusrmgr.msc