How to make a date of birth 2019 corrected to 1938

Hi,

To correct your date of birth from 2019 to 1938 on your Microsoft account, you'll need to follow specific steps because the account is currently flagged as a minor account. Microsoft has restrictions on changing birthdates for accounts that appear to belong to a child for safety and privacy regulations.

You can try this:

Option 1: Use an Adult Account to Manage the Change (Recommended) 

The most effective method is to use a separate adult Microsoft account to add your current account to a family group and change the settings. 

1. Sign in with an adult account to the Microsoft Family Safety page. If you don't have an adult account (age 18+ or 19+ in some regions), you may need to create one.
2. Add your existing account (the one with the incorrect 2019 birth year) to the family group using its email address.
3. From the adult account's view, select your account and choose to Edit this child's personal info.
4. Update the birth date to your correct year of 1938 and save the changes.
5. Once the age is corrected, you can choose to leave the family group if you wish.

Option 2: Try Direct Editing (May Not Work) 

You can attempt to change the date of birth directly, but the option may be grayed out due to the account's listed age. 

1. Sign in to your Microsoft account profile at the Microsoft account | Your profile page.
2. Go to the Your info section and look for the Edit date of birth link or button.
3. If the fields are editable, enter your correct birthdate and select Save.
4. If the date of birth fields are grayed out or you see a message about parental consent, this method will not work, and you must use Option 1 or Option 3.

Option 3: Contact Microsoft Support

If the above steps are not possible, you can contact Microsoft Support for direct assistance. Be prepared to verify your identity. 

1. Visit the Contact Microsoft Support website.
2. Enter a description of your problem in the search box (e.g., "cannot change birth date") and select Get Help.
3. Select Contact Support at the bottom of the page.
4. Choose the appropriate Products and services (e.g., Microsoft 365 and Office) and Category (e.g., Manage Subscriptions or Billing and Account Profile questions).
5. Select the option to Chat with a support agent in your web browser to speak with a live representative. 

You can also check on this link for reference on changing date of birth also there is a  Contact Microsoft Support below the page.

How to change a birth date on a Microsoft account

Hope that his information helps.

Kind regards,