- Go to the Apple Menu.
- Open “System Preferences.”
- Click on “iCloud.”
- Type in the Apple ID that you wish to use on your Mac followed by the password.
- Click on “Sign in.”
How to Change Apple ID on Mac (2021)
How to Delete iCloud on Mac in 2 Easy Ways!
To switch the iCloud account you are using, log out of both your old and new accounts at system preferences>iCloud and then re-log into your desired primary account.
Navigate to appleid.apple.com in your browser sign in with your Apple ID and password click Edit in the Account section select Change Apple ID under your existing email address Enter a new email and click Continue.
In the Settings app, locate your name at the top and select Sign Out. Continue to scroll through the following screen until you get to “Sign out of iCloud” where you will be prompted to sign out a second time.
When you change your Apple ID, you will not lose any data and would have to start over from the beginning if you make a new account.
Prepare to have your contacts, calendars, and apps wiped clean if you change the iCloud login.