Prerequisites for Exchange- steps to install Windows Server operating system prerequisites for Exchange Mailbox servers and Edge Transport servers.System requirements for Exchange- provides info to ensure your network, hardware, software, clients, etc.Active Directory schema changes- summary of schema changes made when installing Exchange 2016/2019.Exchange Deployment Assistant- asks questions about your current environment, then customizes and generates a step-by-step checklist to help you deploy on-premises (English only).Decommission remaining Exchange 2010 servers.Move mailboxes and public folders to Exchange 2016/2019.Move services and other infrastructure to Exchange 2016/2019.Install Exchange 2016 into your existing Exchange 2010 organization.An Exchange Server 2016/2019 migration eliminates the shortcomings of out-of-date servers, so you can maintain control of data and system activities by customizing configurations and system backup options. This version includes all the features from previous editions, yet maintains the dynamic of the Exchange Online/Office 365 experience. UPGRADE TO EXCHANGE 2016/2019 (on-premises) Compliance issues - running outdated or unsupported products could lead to a loss of compliance or other commercial /legal complications.No more security updates - protective bug fixes and security patches used to protect users and data will cease, thus increasing the risk of malware and ransomware attacks.No more documentation updates - existing articles will remain accessible, but best practices and guidance will no longer be published.EOS gives admins more time to complete their migrations in alignment with the end of support for Office 2010 and Sharepoint Server 2010. 2019, Microsoft has extended Exchange 2010 support from Januto October 13, 2020. The end of this lifecycle is known as “End of Support” (EOS) and, as of September 17. Exchange Server, like most Microsoft products, has a support lifecycle that lasts 10 years from its initial release.