Hi Barbara Fernie,
Here is my suggestion to help you troubleshoot and regain access to your device.
1, Reset Your Microsoft Account Password
If the lock is tied to your Microsoft login, updating your credentials often clears the restriction.
- On a different device (like your phone or another computer), go to the Microsoft Account page and update your password.
- Turn on your laptop, ensure it is connected to the internet, and log in using your new password (choose the password/key icon on the lock screen if it defaults to your old PIN).
2, Unlock via Your Online Account Dashboard
If the device was locked remotely through security features:
- Log into your Microsoft account on another device.
- Navigate to the Devices section, locate your laptop, and select the option to Unlock or manage device security.
- Connect your laptop to the internet and restart it to sync the changes.
3, Use Windows Recovery (If Standard Sign-In Fails)
If remote options are unavailable and you are completely blocked from the sign-in screen:
- On the sign-in screen, press and hold the Shift key while clicking Power > Restart.
- Once the machine reboots into the recovery environment, navigate to Troubleshoot > Reset this PC to restore access.
I know how frustrating it is to be separated from your computer, but going through these steps should help you get things sorted out smoothly.