--- title: Windows Hello for Business Deployment Guide - On Premises Key Deployment description: A guide to on premises, key trust Windows Hello for Business deployment. ms.prod: m365-security author: paolomatarazzo ms.author: paoloma manager: aaroncz ms.reviewer: prsriva ms.collection: M365-identity-device-management ms.topic: article localizationpriority: medium ms.date: 08/20/2018 appliesto: - ✅ Windows 10 - ✅ Windows 11 - ✅ On-premises deployment - ✅ Key trust --- # On Premises Key Trust Deployment Windows Hello for Business replaces username and password sign-in to Windows with strong user authentication based on asymmetric key pair. The following deployment guide provides the information needed to successfully deploy Windows Hello for Business in an existing environment. Below, you can find all the information you need to deploy Windows Hello for Business in a key trust model in your on-premises environment: 1. [Validate Active Directory prerequisites](hello-key-trust-validate-ad-prereq.md) 2. [Validate and Configure Public Key Infrastructure](hello-key-trust-validate-pki.md) 3. [Prepare and Deploy Windows Server 2016 Active Directory Federation Services](hello-key-trust-adfs.md) 4. [Validate and Deploy Multifactor Authentication Services (MFA)](hello-key-trust-validate-deploy-mfa.md) 5. [Configure Windows Hello for Business Policy settings](hello-key-trust-policy-settings.md)