Changing Windows Sign-in PIN (Windows Hello)

Open windows settings

Navigate to the 'Accounts' section.

Once within the Accounts section, scroll down to find 'Sign-in options'

Enter into the Sign-in options menu, and navigate to the 'PIN (Windows Hello)' section. Click it and either select 'Change PIN' if you remember the old PIN and desire to change it, or select 'I forgot my PIN' to sign in a different way and change the PIN.

Either sign in, or enter the old PIN, then enter the new PIN you desire to use to sign into your PC and click Save.