Admin account lost in Window

If you've lost access to your admin account in Windows, you can try the following steps to regain access:

1. Use an Older Password: If you remember an older password, try logging in with that.
2. Log in with Another Account: If you have another user account on the computer, log in with that account and then change the password for the admin account.
3. Create a New Administrator Account: If you can log in with another account, you can create a new administrator account through the User Accounts settings in Control Panel.
4. System Restore: If you have a restore point set up, you can revert your system to a previous state where you had access to the admin account.
5. Reset Password: If you have set up security information, you can use that to reset your password.

If these steps do not work, you may need to consider contacting Microsoft support for further assistance.

References:

• How to use System Restore to log on when you lose access to an account
• Forgot password to sign in to Microsoft 365, Intune, or Azure

I cannot add user account by any email i tried. Any restriction on email to creat an user account?