Windows 10: Microsoft account tied to built-in admin account

I seem to be in quite a pickle here, I upgraded my laptop, a few years ago from windows 7 to 10, recently my boss asked me to pass on my work to others, but there's a problem, My personal Microsoft account, somehow got linked to the built-in administrator account, the laptop is from a referb center, so I don't have backs to do a reinstall, also there files and programs that can't be deleted.


I migrated everything to a new admin account, problem is now I can't remove my MS account from the built in, and the account I converted to local about a year or so ago. I do a full reset, but I don't know if that blow out the product keys of the programs installed, just want my ms stuff out of them, I'm not signed into any apps I am aware of, yet my email listed under "Accounts used by other apps" all I have listed there is Manage, the pc been removed from http://accounts.microsoft.com. I spoke with MS about this, and it's been looping back to create a new account, anyone have any suggestions, is a clean install my only option here? I disable the built-in account, but my settings are still there.

:)

 

Undo Built-in Administrator Account tied to a Microsoft Account

No, that will not fix it.

I've been testing this now quite extensively because I found something that makes me worried; as of version 1709 it is now possible to use UWP apps also when signed in as built-in admin. This was not possible earlier. If tried, an error message like below was shown:





Now, with full access to UWP apps it means that, although it still is not possible to switch built-in admin account to a Microsoft account from Settings > Accounts, it is now possible to sign to UWP apps with MS account when signed to Windows as built-in admin and from there switch the system account to a Microsoft account when choosing wrong:





In my opinion this is a serious error, something that should not be possible and allowed.

When the built-in admin account has been connected to a Microsoft account, the only way to revert it, switch back to a local account is a clean install. The link to switch to a local account is simply missing:





For repair install, there's nothing to repair; the account is OK and working.

 

Undo Built-in Administrator Account tied to a Microsoft Account

Hi Brink, thanks for the response; I have checked the Microsoft Store, yet the MSA is NOT signed into the store.

Thank you for trying to help; I understand that while my account may look inexperienced (including the typo "build is" rather than "built in"), I am far from it. I did mean the built-in Administrator account is logged in with an MSA, as others have commented on below. Understandably, you didn't know, as it was new information to me as well!

My apologies, I wouldn't have posted a new thread if I had found that thread. You may merge them if you'd like.

Here are some screens from the laptop. It sounds like there is no way besides a clean install.

Screenshot 1: No MSA signed into the Microsoft Store
Screenshot 2: MSA signed into Administrator account with no option to switch to local
Screenshot 3: No MSA linked to Email and Accounts
Screenshot 4: netplwiz options - no option to reset password (since it is an MSA)
Screenshot 5: netplwiz properties - shows it is the built in account

Other notes:
I can load all the UWP apps without error
If I press forgot password from the login window I am taken to the Cortana reset MSA password experience

 

Undo Built-in Administrator Account tied to a Microsoft Account

OPs post does not make sense. The built in and normally hidden Administrator account cannot login with an MSA account and does not run uwp apps.

I think OP is confusing the Administrator account with the default Admin account initially setup which can be a local or MS account - the installer tries very hard to get you to use MSA as we all know.