Reset Windows Pin
Reset your PIN when you aren't signed in to Windows 10
A PIN is a set of numbers, or a combination of letters and numbers, that you choose yourself. Using a PIN is a quick, secure way to sign in to your Windows 10 device. Your PIN is securely stored on your device. If you aren't signed in to your device and you want to reset a PIN, here are some things to try.
Look below the PIN text box.
If you see I forgot my PIN, select it and follow the instructions to reset your PIN. If there are multiple accounts on the device, choose the one you need to reset.
If you don't see I forgot my PIN, select Sign-in options and then select Enter your password.
After you're signed in, select Start > Settings > Accounts > Sign-in options > Windows Hello PIN > I forgot my PIN and then follow the instructions.
Note: The PIN you use to access your device is different from your Microsoft account password. If you need to reset your Microsoft account password, go to account.microsoft.com, select Sign in and follow the instructions. Next, select Your info > Profile > Change your password > Change and then follow the instructions. If you're worried that someone has unauthorized access to your account, see Recover your Microsoft account and Security info & verification codes.