So that you will not be able to login Windows with Microsoft account, cannot add a Microsoft account, or switch a local account to a Microsoft account, or connect a domain account to a Microsoft account. If you want to limit the use of Microsoft account in your computer, such as disabling Microsoft logon option, you would have to block or disable Microsoft accountmanually. Microsoft account is allowed to add or create in Windows 10/8 by default. How to Disable or Block Microsoft Account in Windows 10/8
