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You may want to change the email address (also known as account alias) you use to sign in to your Microsoft account for one of the following reasons:
Follow the steps on this page to change the Microsoft account email address or the phone number you use to sign in.
Important Before you begin, you need to know the email address and password that you used to set up your Microsoft account. If you don't know them, use the Lost Account Solution or the Lost Password Solution.
Step 1: Add a new email address or phone number
Step 2: Set the new email address as your primary alias
After you add the new email address, you need to set it as your primary alias to have it displayed when you sign in to all devices and services. Here's how:
On the Manage your account aliases page, select Make primary under the email address you want as primary under Account alias.
Note Only email addresses can be used as primary aliases.
Step 3: Remove the old email address you no longer want to use
To remove an email address you no longer use, select Remove next to that alias on the Manage your account aliases page, and then follow the instructions provided.
Note It can take up to 48 hours for the change to your email address to be implemented across all Microsoft services. If you sign in to your Microsoft account on an Xbox One console by using your Kinect sensor, you might temporarily be asked to manually sign in with a controller. If you're still being asked to manually sign in after 2 days, try removing your profile from the console and then adding it back. (For help, see Gamertag and profile: Manage profile support.)
You can use any email address or phone number you have listed as an alias to sign in. To make it harder for someone to break into your account, change your sign-in preferences to turn off any alias you don't want used to sign in.
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