We're focusing this guide on Windows 10 Home users, but this option, as well as BitLocker, is also available for devices running Windows 10 Pro with supported hardware.
Note that, if you go out of your way to enable BitLocker on a computer without a TPM, you’ll be prompted to create a startup password that’s used instead of the TPM. Before you can set a PIN, you have to enable BitLocker for your system drive. This is only available on Professional and Enterprise editions of Windows. This is a BitLocker feature, so you have to use BitLocker encryption to set a pre-boot PIN.
RELATED: How to Set Up BitLocker Encryption on Windows Step One: Enable BitLocker (If You Haven’t Already)