Windows 10: childs friends email has taken over our laptop after signing into microsoft store

hello my childs friend logged into the Microsoft store with his email address on my childs laptop but used my childs face unlock as the password now his email address has taken over the laptop as admin and i can not remove it. we have been working with the other childs parents they can see his device then remove it but everytime we use ours it registers again on their family account also we are locked out of chrome and edge even though they do not have those restrictions set. when i hit the manage my family it takes it to our microsoft family. when i click on their emails i can only change the settings of can sign in or cant sign in. we have tried the alias option but it will only alllow our email address not theirs i am not tech savvy in anyway. they have raised a support case with micosoft but not much luck with micosoft suggestions.

Thanky you very much in advance if anyone can shed some light on this problem.

:)

 

App Store sign-in error, 0xD000000D

Hi Suzanne,

There's a possibility that you are currently signed in on your computer using your local account. For us to sort this out, we suggest that you sign in with your Microsoft account instead. Follow these steps:

• Open Settings > Accounts > Your email and accounts.
• Select Sign in with a Microsoft account instead.
• Follow the on-screen instructions.

Once signed in with your Microsoft account on your computer, try signing into the Windows Store app.

Update us with the result.

Regards.

 

Email to my friend

The likely explanation is that you are using a different character encoding than
your friend.

For example, you may be sending special characters in another language to
someone who only uses English, and they are then displayed as binary
in hexadecimal.

I suggest to compare the email you sent with what she sees to find out which
are these characters.

 

Child activity reporting

Hello,

You might be facing this issue due to the account is not configured properly.
Kindly refer to the steps below on how to reconfigure your
Family Safety feature for your Windows 10 device.

To remove a child

• From a web browser, go to
  http://account.microsoft.com/family and sign in with the Microsoft account of an adult in the family.
• To remove a child, choose Remove at the top of the section labeled
  Select a child to view or edit their settings.
• Select the person you want to remove from the family.
• Select the Remove button that appears when you've chosen the person to remove.

To add a child to your family

• Sign in at
  account.microsoft.com/family.
• If this is your first time setting up a family, select Add a child.
  
  If you've already added child accounts to your family, go to Select a child to view or edit their settings and then select
  Add.
• Enter your child's email address and select Send invite. If your child doesn't have an email address, select
  Create a new email address for your child and follow the instructions on the screen.
  

If the suggestion above doesn't work, feel free to post back so we can further troubleshoot.