deleting email account and creating a new primary email

Hi There.

Yes, it is safe to change you email adresse on your account without losing your purchases and data. See guide here:

Change the email address or phone number for your Microsoft account

Note that if you remove an email adresse from a MS domain (@live, @outlook, @hotmail) the email alias will be completely deleted.

I can delete the old email address then?

I changed the email on my gamer tag by signing in to microsoft live account, creating a new alias and assigning it as the primary account, then deleting the old alias.

Sure I can help.

First go to: https://account.live.com

Sign in using the email and password that you use to sign in to your Xbox account.

Now go to Account aliases>Add alias

Now you will get 2 options: Create a new email address and add it as an alias and Add an existing email address as a Microsoft account alias

Create a new email address and add it as an alias will let you create a brand new email ending with @Outlook @Live or @Hotmail

Add an existing email address as a Microsoft account alias will let you add an email that you have already created on to your account (it can be anything, even if it is not a valid email, so check your spelling)

If you choose Create a new email address and add it as an alias : once you create the new email it will kick you back to "Account aliases", click on "Make Primary" under the new email and it will make it the new email on your account, you will now use it
to sign in to your Xbox and Xbox.com.

If you choose Add an existing email address as a Microsoft account alias: Once you add the email that you want it will kick you back to "Account aliases", from here, click on "Verify", it will send you a verification link to the new email, you must go to
your email, login, and click on the verification link, after you do that, come back to account.live.com , go back to "Account Alias", and now click on "Make Primary" under the new email and it will make it the new email on your account, you will now use it
to sign in to your Xbox and Xbox.com.

To delete the old email: Once you have a new primary email, click on "remove" under the old email to remove it.

Have a nice day.

if its an outlook or live email created with microsoft then it auto creates an xbox account as it auto creates a microsoft account, if you used a third party email like gmail then create a new alias, make that primary then remove the email address.