"0x8007042B - 0x3000D The installation failed in the FIRST_BOOT phase with an error during MIGRATE_DATA operation."

I´m coming from here:

In-place Upgrade to WIndows 10 failed, 0x8007042B - 0x3000D

I am having the same error while trying to upgrade from Win8 to Win10: "0x8007042B 0x3000D" referring to an error with the operation migrate_data.

While I find 5 different profile user folders, none of them corresponds to the whoami /user query on the cmd console. This is odd. Also if I type wmic useraccount get name,sid in the cmd console, either in the directory or W/Win32 I get a message that the instance is not available. Is there any fix download to profile user errors as to solve this?

Thanks in advance