Microsoft Account sign in problems Windows 10

Hi ShirleyMoreno1,

Thank you for posting your question in the Microsoft Community Forums. 

Appreciate your efforts to work on this issue.

I can understand the situation must be difficult for you when the system doesn't work as it should.

Please answer these questions to get more clarity on this issue:

1. Are you aware of any changes made to the PC prior to this issue?

2. Are you using a Microsoft account or a local account?

3. Do you have any other Administrator user account on your system?

However, let us follow these methods to check if that helps you to sign in to the PC:

Method A: Since you are not able to login with your Microsoft account credentials, suggest you to open a preferred web browser, go to login.live.com and check if you are able to login with the Microsoft account.

Suggest you to follow the steps provided by ‘Likhitha V’ from this thread to check if that helps you sign in to the PC.

Method B: Further, if the issue still persists and if you are using a Microsoft account to login to your system, I suggest you to refer this article on When you can't sign in to your Microsoft account and check if it is helpful to you.

https://support.microsoft.com/en-us/help/12429/microsoft-account-sign-in-cant

Please follow the suggestions provided and get back to us with the results.

Regards,

Srimadhwa B