At first try these Steps to enable - Sing in - options
Go to Settings > Accounts > Sign-in options.
Turn Off the option switch [ ] For improved security, only allow
Windows Hello : Sign-in for Microsoft accounts on this device option.
This above procedure only applies. if you have Windows 10
-- Report what is your "Windows OS" Wins 8 : 8.1 - 10 : 11
To receive answers, from other repliers - on how to display
the - Sign in - options. if they're not showing in your computer
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*Wait,.! : Try this solution for any,.. Windows operating system..*
What can I do : if the login window does not appear..?
To do this, make sure your PC is turned on. Next >> press the Ctrl + Alt + Delete
keys together in the keyboard. This should force the - Sign-in screen to
appear. " Ctrl + Alt + Delete " is a Windows keyboard shortcut
initially used to terminate, unresponsive applications