Windows 10: Can I access my data still if I get Windows error message: "We can't sign in to your account"

I'm trying to help a friend with this issue, and we've tried a lot we were just going to factory reset the PC since it had some issues anyway, but I was curious if there was a way to access the data to transfer it.

:)

 

Windows 10 will not let me sign in to my account to access my computer

Try these suggestions: How to Fix We can’t Sign Into Your Account Error on Windows?

 

Creating or signing in to microsoft account

Hi Gloria,

The error code that your are getting when adding an account is usually caused by the following:

• Your phone has an incorrect date and time set.
• You do not have a data connection.
• Your phone is in a "bad state."

We suggest that you follow the steps on this link to set up your Microsoft
Account on your device.

Keep us posted for further assistance.

Regards.

 

Cannot sign in microsoft account.

My device: Lumia 520. GDR2.
I cannot sign in my Microsoft account on my device. It didnt say any error but Microsoft account is not listed in Email and account list. When I click add button, it will show microsoft account option but after press sign in, it is still not shown in email
and account. Another problem is i cannot delete facebook account. Error code: 0x83cf1202. I have tried as suggested here: http://support.microsoft.com/kb/2475837/en-us#step0x83cf1202 but as my Microsoft account is not shown, I cannot do step 6.

Any suggestion?