If you want to remove Pin to Start from the right-click context menu in Windows 11/10, then delete the PintoStartScreen Registry key.

How to Disable and Remove Password in Windows 10 You can just create a PIN — it's easier!

One such innovation is Microsoft’s Windows Hello, a biometric authentication system that allows users to log in to their Windows 10 or 11 computers using facial recognition, fingerprint, or PIN.

Force users to create a complex PIN that uses digits, lower/upper case & special characters in Windows by enabling PIN Complexity Group Policy.