Windows 10: account linked with product key

i have 2 microsoft accounts in this pc currently and how do i check/change the account linked with the product key . i am using windows 10 home edition

:)

 

Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

Product key

Hi Megan,

A product key is used when activating a software.
To help us determine the appropriate troubleshooting steps that can resolve your concern, we'd like to ask the following questions:

• What product are you trying to activate?
• Are you looking for the product key to activate your Office application?
• Which version of Office are you trying to activate? To check this, you can perform the steps posted on this
  link.
• Are you looking for the product key to activate your Windows?

We look forward to your response.

 

Product key without Microsoft account?


I read that the Windows 10 product key from the free upgrade is automatically linked to your Microsoft account. Since I do not want to use a Microsoft account to sign into Windows, will this be a problem when I reinstall in the future?