The PIN sign-in introduced in Windows 8 helps us to log-in to system using a easy to remember 4 digit number. PIN sign-in is bit handy as compared to password and Picture password options. However, one disadvantage of PIN sign-in, is that it doesn’t works when your system is in Safe Mode.
PIN Sign-in is disabled when system is joined to Domain
If you are running a Windows 8 or later running system that is joined to domain, you may not able to create or logon using PIN. When you visit the PC Settings -> Users and accounts -> Sign-in options section to create the PIN, you may find that the option to create is grayed out i.e. disabled.
As you can see from the image shown above, there is no error or message displayed for the option disabled there. If your PIN Sign-in disabled & grayed out when Windows is joined to a domain, turn on & enable PIN sign-in for Domain users by following this tutorial.
Turn on & enable PIN sign-in for Domain users
This method only In Windows 8 or later; Pro & Enterprise Editions.
1. Press Windows Key + R combination, type put gpedit.msc in Run dialog box and hit Enter to open the Local Group Policy Editor.
2. In the left pane of Local Group Policy Editor, navigate here:
Computer Configuration -> Administrative Templates -> System -> Logon -> Turn on pin sign-in
3. In the right pane of above shown window, look for the setting named Turn on PIN sign-in which must be Not Configured by default. Double click on the same setting to get this:
4. Finally, in the above shown window, click Enabled and then click Apply followed by OK. You can now close the Local Group Policy Editor window and reboot the machine. After restarting the system, you should be able to use create and use PIN sign-in.
Hope this helps, Good luck!