You’ll need to set one up in order to log in to Windows 10. If you don’t have an account with any of the above services, then you don’t currently have a Microsoft account.
Simply input those same details to log in to Windows 10. If you have an existing account with, Hotmail, Office 365, OneDrive, Skype, Xbox or Windows, good news - the email address and password that you use to access that account will also work as your Microsoft account. If you’re using a computer that’s running Windows 10 as its operating system, you’ll need a Microsoft account to log in. How to check if you have a Microsoft account link your computer to your Microsoft account.set up a Microsoft account if you don’t have one.find out if you already have a Microsoft account.Log in to Windows 10 requires a Microsoft account - here's how to make sure you're all set up
