Easily Move Exchange Server 2019 CU14 on Windows Server 2022 involves several steps. Here’s a structured guide to help you with the migration process:

1. Prerequisites and Planning
Before you start the migration, ensure you meet the following prerequisites:

Operating System: Exchange Server 2019 CU14 is supported on Windows Server 2022.
Hardware Requirements:
Memory: At least 128 GB for multi-role servers.
Disk Space: 30 GB for Exchange installation, additional space for databases and logs.
CPU: 2-core minimum, 4-core or more recommended.
Active Directory:
At least one Windows Server 2016 or later domain controller.
Forest and domain functional levels should be Windows Server 2012 R2 or later.
Exchange Server Requirements:
Ensure the Exchange Server 2019 CU14 ISO is downloaded.
Make sure you're running the latest updates of Windows Server 2022.
2. Prepare Active Directory
Extend the Active Directory schema by running the following commands (from the Exchange setup folder):
Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
Then prepare the AD:
Setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms
Validate AD changes with:
Get-ADForest | Format-Table SchemaMaster,DomainNamingMaster
Get-ADDomain | Format-Table InfrastructureMaster
3. Install the Required Roles and Features
On Windows Server 2022, run PowerShell as Administrator and execute:
Install-WindowsFeature ADLDS, RSAT-ADDS, Web-Server, NET-Framework-Features, NET-Framework-Core, NET-HTTP-Activation, NET-WCF-HTTP-Activation45
Install-WindowsFeature RSAT-ADDS, RPC-over-HTTP-proxy, Web-Mgmt-Console, Web-ISAPI-Filter, Web-ISAPI-Ext, Web-Metabase, Web-Lgcy-Mgmt-Console, Windows-Identity-Foundation
4. Install Exchange Server 2019 CU14
Mount the Exchange Server 2019 CU14 ISO on your Windows Server 2022.
Run the Exchange installer:
Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataON
Follow the installation wizard to complete the installation:
Select the appropriate server roles (Mailbox or Edge Transport).
Configure server settings like database paths, certificate settings, etc.
5. Post-Installation Steps
Configure Certificates: Install and assign SSL certificates for Exchange services (SMTP, IIS, POP, IMAP).
Verify Service Health:
Use Exchange Management Shell to check services:
Get-ServerHealth -Identity <ServerName> | where {$_.AlertValue -ne 'HEALTHY'}
Mail Flow and DNS Configuration:
Update your DNS settings for mail flow (MX records, SPF records).
Move Mailboxes: If applicable, start migrating mailboxes to the new Exchange 2019 server.
6. Decommission Old Exchange Servers (Optional)
After confirming that the mail flow, databases, and all Exchange functionalities are working properly on the new server, you can proceed to decommission the old Exchange servers.
7. Test and Validate
Outlook Connectivity: Ensure all clients (Outlook, mobile devices) can connect to the new Exchange server.
Test Mail Flow: Send internal and external test emails to ensure proper mail flow.
Monitoring: Implement monitoring and alerts for critical services like the Transport service and Mailbox databases.
By following these steps, you'll be able to successfully install Exchange Server 2019 CU14 on Windows Server 2022. Let me know if you'd like more detailed assistance with any specific part of this process!
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Update 9/10/2024: Please see our new blog post for additional details on how to get from current versions of Exchange Server to Exchange Server SE: