Hi Jeff,
Please login the machine, and then navigate to the following configuration panel:
Settings->Accounts ->Sign-in options
Under the PIN configuration part, check to see if we could change it. After that, lock your machine and you will notice there would be Sign-in options available:
Click on that, then it will allow you t ochoose whether to login using Password or PIN:

Let us know if any further help needed.
Regards
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.