Windows 10: Verify Your Identity,how?

I haven't used my Win 10 laptop (Dell) for several years. I decided to raise it from the dead, then a complete reset as if the computer is now brand new. I bought it when win 7 was installed, updated that to win 10, then retired the laptop for a desktop dell. However, the "verify your identity" has me baffled. It seems to remember a now-invalid email address, for one. Each subsequent question I answer seems to open up a new can of worms. I now can't seem to go back to start over. Short of doing another complete reset what should I do?

:)

 

“We need to verify your identity”,

I have received this code about a 100 times, either to my phone or my e-mail. It lasts about an hour or two, then I get the “We need to verify your identity” pop-up again.

Two-step sign in is not activated.

I also noticed that on the "My devices" page, my desktop PC is shown with detailed info, like motherboard type, Windows 10 Core (10.0.10586.63), etc.

But my other computer, the laptop, is just listed as "PC". No other information is available, not Windows version, no hardware details, nothing. That laptop is the only one that gets this annoying “We need to verify your identity” despite me having entered
the code over a hundred times in any available way.

I am quite certain that the fact that not detailed PC or Windows information is closely related to the “We need to verify your identity” problem.

 

identity will not verify

my identity will not verify in my info

 

Verify your identity oln this PC

Being ask to verify my identity, since the last update - Creators Update - it no longer accept the remain letters for the email or the numbers for the mobile phone on the PC

As a result it no longer sync ...

Any suggestions?