Hi Sharon Poulin,
I understand you're unable to sign in because the PIN is locked and the PC currently has no internet connection.
If this is a Microsoft account and the device was previously connected to the internet, please check whether you can sign in using your account password instead of the PIN:
- On the sign-in screen, select "Sign-in options".
- Choose the password icon (if available).
- Enter your Microsoft account password.
If you can sign in with the password, reconnect the device to the internet and then reset the PIN from "Settings" > "Accounts" > "Sign-in options" > "PIN (Windows Hello)".
If the password option is not available, please let me know whether you are using a Microsoft account or a local account, as the available recovery options differ for each account type.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.