Windows 10: After Update, Windows 10 is asking for a very old password

Hello! My mom has a laptop that started as Win7, was upgraded to Win 10. After a recent update, the machine is asking for a password it wasn't, prior to this, the password must be several years old. The email account that she used when it was new **** Email address is removed for privacy *** is no longer available to her, and the phone number listed is her old land line, also no longer accessible. I've tried entering the information to try and get the account back, but Microsoft refuses, saying we don't have enough information. Is there a way around this? Change phone number, change email, something else? Th

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Cortana asking for a non-existent "old password"

Hello Paul,

Thank you for posting your concern in Microsoft Community and welcome to the Windows 10 Family.

To be able to assist you better, let us know a few more details on the below questions.

• Is this is the first time you are trying to sign in to Cortana?
• Did you try to check if similar issues occur when you sign through Microsoft Account(MSA)?
• What is the current build of Windows 10 installed in your computer?

As an initial recommendation, I suggest you to refer to the below thread wherein one of our Forum Moderators,
Vinod Archak has replied to a similar scenario.

Why does Cortana ask me to “Enter your old password one last time”?


If it still does not help, I suggest you to make sure that you have changed your location/region and language of the PC to the ones supported for Cortana.

Ref:
Cortana's regions and languages

Follow the below steps to check for the correct system locale in your PC:

• Control Panel
• Select Change date, time, or number formats
• In the Region dialog appears, choose Administrative and click
  Change system locale.
• Select a appropriate system locale

Write to us with the updated status and the required information for us to be able to assist you better.

 

Cortana ask me to “Enter your old password one last time”

Hi Dennis,

To better assist you, we would like to ask these questions:

• Which Windows build version do you have? Have you updated your Windows 10 to Creators Update?
• What are the troubleshooting steps have you done so far?
• Is this the first time that you are trying to use Cortana and you don't have an old password?

We will look forward for your response.

 

Cortana asking for old password

Hi,


Thank you for posting your query in Microsoft Community.

I understand how you feel about the situation. I suggest you some steps which can resolve your issue.

Refer to the suggestion by Vinod Archak from the following link and check if it helps.

https://answers.microsoft.com/en-us...-c0dd-4bc5-ba9c-566a7d9f1fb8?tm=1438821444519

Hope the information provided was helpful. Kindly let us know if you need any further assistance with Windows. We are happy to assist you.

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Thanks & Regards,