Cannot update macOS with new Apple ID I have a MacBook Pro with macOS 10.8.5. I am trying to update to High Sierra with a new Apple ID. After entering my Apple ID it says 'This Apple ID has not been used with the App Store, please review your account information.'

When I click Review, it says 'Software update required, to make changes to you need to upgrade your mac to the latest version macOS.'

I dont have any other apple devices to set up my Apple ID with.
I assume you are doing that from one of the System Preferences? 

If so, log into https://appleid.apple.com/#!&amp;page=signin with that new account in a web browser.

You may have to feed it a credit card or some other payment option because That Is The Way Apple Works (sigh...). Once you have done that you should be able to log in and download the new OS.