Reset Administrator on mac OS High Sierra
I accidentally deleted myself as an administrator to my MacBook pro 2015 model running High Sierra OS, How can I reset that to be back as an administrator ?
Try this method: https://www.macissues.com/2014/08/12/quickly-re-create-a-missing-admin-account-o n-your-mac/
It makes the OS think it hasn't run through the initial Startup Assistant and re-runs it on boot. That will create a new Admin user. You can then log into that Admin user and make your current user Admin.