Microsoft Account Errors

How to Change a Hotmail Username After a Surname Change

Amos GikundaAmos Gikunda Oct 26, 2026 868 views

Question details

The user changed their surname and wants to update their Hotmail username to reflect the new name, while retaining access to existing email messages and contacts.

How to Change Your Hotmail Username After Changing Your Surname
Product
Hotmail / Microsoft Account
Device & OS
not provided
Scenario
Updating an email address after a legal name change without losing previous emails.
Observed behavior
Microsoft does not allow direct renaming of an existing Hotmail email address, requiring users to set up an alias or forward emails to a new account.
Before you start

Ensure you have access to your current Hotmail account and decide whether you prefer adding a new address to your existing inbox (alias) or starting with a completely new account.

Solution 1Recommended

Add a New Email Alias to Your Existing Account

Creating an alias allows you to add a new email address linked to your new surname while keeping the same inbox, contacts, and account settings.

An alias is an additional email address associated with your Outlook or Hotmail account. It shares the same inbox, password, and contact list as your primary address.

This is the most seamless method because it requires no data migration and lets you choose which address you send from.

1
Sign in to Microsoft

Navigate to the Microsoft account website and log in with your current Hotmail credentials.

2
Access your info

Click on 'Your info' at the top of the page, then select 'Edit account info'.

3
Add an email alias

Under 'Account aliases', click the link that says 'Add email'.

4
Create the new address

Select 'Create a new email address and add it as an alias', type your new desired username using your new surname, and click 'Add alias'.

5
Set as primary

Once added, you can click 'Make primary' next to the new alias so it appears as your main sender address.

Add a New Email Alias to Your Existing Account
Domain availability restrictions: Microsoft no longer supports creating new aliases with legacy domains like @hotmail.co.uk. Your new alias will typically use the @outlook.com domain.
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Frequently Asked Questions

Can I directly rename my existing Hotmail email address?

No, Microsoft does not allow users to directly change an existing email address or domain. Instead, you must add a new alias to your account or create a completely new Microsoft account.

Will I lose my old emails if I create an alias for my new surname?

No, creating an alias simply links an additional email address to your current inbox. You will retain full access to all your old emails, contacts, and calendar events.

Can I create a new alias with an @hotmail.co.uk domain?

Microsoft has discontinued the creation of new regional domains like @hotmail.co.uk. Any new alias or account you create will need to use currently available domains such as @outlook.com or @hotmail.com.