Windows 10: How can I revert back to my original account?

I recently purchased a new laptop. I was required to provide login Microsoft ID and Password. Unable to recall original account ID and password, I created a new account for data transfer. Unfortunately, ALL email data failed to transfer to the new account I suspect because my original account ID was my email. I have been unable to revert to my original account due to inability to receive CODE messages, either from Outlook, Authenticator, or Text message.

:)

 

Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

Display langage reverted back


I followed the suggested actions: everything OK from step 1. and I attach as requested the output for step 2.



for convenience I attach the google translation



I'm ready to act following suggestions (if any) before...going through the restore (please don't misunderstand, I'm not looking forward doing it).

I appreciate in any case your help

 

Revert back to original firmware??

I just tried updating the firmware on my OCZ vertex 2 drive but it tanked my my write speeds. Is there a way to revert back to the original firmware??