I haven't used Windows 8 much, but I do run Skype on my family Windows 10 PC. Microsoft has stopped updating the Skype Metro app. Users are encouraged to upgrad

I haven't used Windows 8 much, but I do run Skype on my family Windows 10 PC. Microsoft has stopped updating the Skype Metro app. Users are encouraged to upgrade to 'classic' desktop app - which is what I have. The desktop app does not pick up your Windows login - you actually have to log in and ask Skype to remember your credentials. This works on local user accounts as well as accounts authenticated with a Microsoft account.