I don't have access to the email and phone number I use to sign in and idk how to change...

Change the email address or phone number for your Microsoft account

Change the email address or phone number for your Microsoft account
Applies to: Microsoft account

Your Microsoft account lets you manage Microsoft services and subscriptions, like Xbox Live, Outlook.com, OneDrive, Skype, and Windows 10, from a single account.

You can add up to 10 email addresses or phone numbers to your Microsoft account. Email addresses and phone numbers that are associated with your Microsoft account are called aliases and they use the same contacts, online storage, subscriptions, and account
settings. Each alias lets you sign in to all your Windows 10 devices and services that use the Microsoft account.

Your aliases share a single password, and you can send and receive email with each. Your primary alias will be the username you use to sign in to your account, the username that appears on your Windows 10 devices, and how you show up to recipients in email.

You can make changes to the email addresses or phone numbers (aliases) that are associated with your Microsoft account. Here are some reasons you might want to make changes:

• You want to add or remove an email address or phone number.
• You want to use a different email address or phone number to sign in.
• You want a different username to appear on your Windows 10 devices.
• You want an email address you can give to other companies or other people that can't be used to sign in to your account or access your info.
• You received the “Which account do you want to use” message at sign-in.

Change the email address or phone number for your Microsoft account

It is a multi step process.

You can use any email address or phone number you've listed as a username to sign in to your Microsoft account. If you want to sign in with a specific one or change the one you're signing in with, here's how:

1. Sign in to Manage how you sign in to Microsoft with your Microsoft
   account. If you’re having issues signing in to your Microsoft account, go to Microsoft account help.
   
   Note
   
   You may be prompted to enter your Microsoft account password, or to enter a code sent to the email address or phone number listed in your account's security information. By providing this info to us, we know the request is coming from you.
   
2. If you want to use an existing email address or phone number, go to step 6. If you're adding a new email address or phone number, go to step 3.
3. If you selected Add a phone number, go to step 5. If you selected Add email, choose whether to add:
   • A new email address. Select Create a new email address and add it as an alias, and then follow the instructions.
   • A non-Microsoft email address (such as an @gmail.com or @yahoo.com email address). Select Add an existing email address as a Microsoft account alias, and then select Add alias.
4. ​​​​​​After you've added the email address, you'll be asked to verify that you're the account owner:
   1. Select Verify next to the new alias. A message is sent to the account for verification.
   2. After you receive the message, select the included link to confirm that you own the account.
5. If you selected Add a phone number, follow these steps:
   1. Select your country from the list.
   2. Enter the phone number you want to use, and then select Next.
   3. When you add a new phone number, we'll send a text message to that number to verify it. Enter the code in the text message, and then select Next.
6. Under Sign-in preferences, select Change sign-in preferences.
7. Either select the check boxes next to the aliases you want to use to sign in, or clear the check boxes for the aliases that you don’t want to use to sign in, and then select Save.

You would have to contact the company that owns the email and work on their recover methods there. If you can access your Microsoft account without needing to access that email, you can try logging in and changing you email address for your Microsoft Account.

From Change the email address or phone number for your Microsoft account:

1. Sign in to Manage how you sign in to Microsoft with your Microsoft account. If you’re having issues signing in to your Microsoft account, go to Microsoft account help.
   
   Note: You may be prompted to enter your Microsoft account password, or to enter a code sent to the email address or phone number listed in your account's security information. By providing this info to us, we know the request is coming from you.
   
2. If you want to use an existing email address or phone number, go to step 6. If you're adding a new email address or phone number, go to step 3.
   
3. If you selected Add a phone number, go to step 5. If you selected Add email, choose whether to add:
   
   • A new email address. Select Create a new email address and add it as an alias, and then follow the instructions.
     
   • A non-Microsoft email address (such as an @gmail.com or @yahoo.com email address). Select Add an existing email address as a Microsoft account alias, and then select Add alias.
     
4. ​​​​​​After you've added the email address, you'll be asked to verify that you're the account owner:
   
   1. Select Verify next to the new alias. A message is sent to the account for verification.
      
   2. After you receive the message, select the included link to confirm that you own the account.
      
5. If you selected Add a phone number, follow these steps:
   
   1. Select your country from the list.
      
   2. Enter the phone number you want to use, and then select Next.
      
   3. When you add a new phone number, we'll send a text message to that number to verify it. Enter the code in the text message, and then select Next.
      
6. Under Sign-in preferences, select Change sign-in preferences.
   
7. Either select the check boxes next to the aliases you want to use to sign in, or clear the check boxes for the aliases that you don’t want to use to sign in, and then select Save.
   

Best Regards

Change the email address or phone number for your Microsoft account

Your Microsoft account lets you manage Microsoft services and subscriptions, like Xbox Live, Outlook.com, OneDrive, Skype, and
Windows 10, from a single account.

You can add up to 10 email addresses or phone numbers to your Microsoft account. Email addresses and phone numbers that are associated with your Microsoft account are called aliases and they use the same contacts, online
storage, subscriptions, and account settings. Each alias lets you sign in to all your Windows 10 devices and services that use the Microsoft account.

Your aliases share a single password, and you can send and receive email with each. Your primary alias will be the username you use to sign in to your account, the username that appears on your Windows 10 devices, and how
you show up to recipients in email.

You can make changes to the email addresses or phone numbers (aliases) that are associated with your Microsoft account. Here are some reasons you might want to make changes:

• You want to add or remove an email address or phone number.
• You want to use a different email address or phone number to sign in.
• You want a different username to appear on your Windows 10 devices.
• You want an email address you can give to other companies or other people that can't be used to sign in to your account or access your info.
• You received the “Which account do you want to use” message at sign-in.

Hi Jordan S, my name is Courtney and I would be happy to help.

For security reasons, support cannot help you gain access to your account or change internal account information.

The recovery form is the only way to gain access to the account again, and once access is regained you will be able to change the information you need.

I know this is not the ideal answer you would like to hear, and I understand how irritating it can be, but it is the only one available at this time. You can always fill out the form again if you remember more information.

Navigate to https://account.live.com/acsr to access the Microsoft account recovery page.

To confirm your identification, you will be asked to submit some personal information, including your name, date of birth and address. To the best of your ability, offer objective information.

Once your identification is confirmed, you will be asked to change your account password.

Information source (Credits): https://answers.microsoft.com/thread/ba398577-5ace-43a6-8ef4-bfe426f0fe08

Note: This information was obtained through the Independent Advisor Janbaz Salehi in one of his publications, and it seemed like a good idea to share this information with you with the intention of helping you.

Please let me know if you need more help.

Best regards,
Courtney.