If this is a personal Microsoft account on a home Windows 11 PC, the email used for the admin account is changed by adding a new alias to the same Microsoft account.
- Open Edit account info at https://account.live.com/names/manage and sign in.
- Select Add email.
- Add and verify the new email address.
- If needed, select Make primary for the new alias.
- After confirming the new alias works for sign-in, remove the old address if it is no longer needed.
Important:
- Any alias enabled for sign-in can be used to sign in to Microsoft services and Windows.
- An email address already used as an alias on another Microsoft account can’t be added.
- Removing a Microsoft-domain alias such as @outlook.com, @hotmail.com, or @live.com permanently deletes that address and it can’t be reclaimed.
If the old email cannot be changed because of account restrictions, use the Microsoft account guided support tool from the account article.
If this is a work or school admin account, the change is done in the Microsoft 365 admin center:
- Go to Users > Active users.
- Select the admin account.
- Choose Manage username and email.
- Update the email address and save the changes.