You have Windows 10 Pro devices that are joined to an Active Directory domain. You plan to create a Microsoft 365 tenant and to upgrade the devices to Windows 10 Enterprise. You are evaluating…

Azure Active Directory is a mandatory prerequisite for Windows Hello for Business when targeting Microsoft 365 SSO, as it provides the identity platform for device registration, authentication, and token issuance that WHfB relies on for cloud-based single sign-on.

Smartcards are a separate authentication technology and are not a prerequisite for Windows Hello for Business; WHfB is specifically designed to replace smartcard and password-based authentication with key-based or certificate-based credentials.

Microsoft Intune enrollment is required to manage and deploy Windows Hello for Business policies to devices in a Microsoft 365 scenario, as Intune serves as the MDM authority that provisions WHfB settings and enforces the configuration across enrolled devices.

While a TPM chip enhances security for Windows Hello for Business by providing hardware-backed key storage, it is not a strict mandatory prerequisite for deployment, as WHfB can function in software-based key storage mode on devices without a TPM.

Biometric hardware (such as fingerprint readers or IR cameras) is optional for Windows Hello for Business, as the solution also supports PIN-based authentication, meaning biometric sensors are a feature enhancement but not a deployment prerequisite.