Change Windows Hello Pin Change or reset your PIN when you're already signed in You can use the Settings app to change your PIN. In the Settings app on your Windows device, select  Accounts  >  Sign-in options  or use the following shortcut: Sign-in options Select  PIN (Windows Hello)  >  Change PIN  and then follow the instructions. You must enter your old PIN in order to change to a new one If you forgot your PIN, select  I forgot my PIN  and follow the directions to verify your account and create a new one.