Before installing Exchange Server 2019, we recommend reviewing this topic to ensure your network, hardware, software, clients, and other components meet the requirements for Exchange 2019. Also, make sure you understand the coexistence scenarios supported by Exchange 2019 and earlier versions of Exchange. This is an excellent framework for building cloud-based mailbox sharing solutions.

Component Requirement Notes
Editor: One of the following 64-bit processor types: Intel processor supporting Intel 64 architecture (formerly known as Intel EM64T). AMD processor supporting the AMD64 platform. Notes: Intel Itanium IA64 processors are not supported. The recommended supported processor sockets are a maximum of 2 on physical computers.  
Memory: Depends on the Exchange server role: Mailbox: Minimum 128 GB recommended Edge Transport: Minimum 64 GB recommended.  Exchange 2019 supports large memory (up to 256 GB).
Paging file size: Set the minimum and maximum paging file values ​​to the same size: 25% of installed memory. No
Disk space: At least 30 GB of free space on the drive where you’re installing Exchange. At least 200 MB of free space on the system drive. At least 500 MB of free space on the drive containing the message queue database. No
Screen resolution 1024 x 768 pixels (XGA) or more No
File system NTFS : Required on partitions containing the following file types: System partition. Exchange binaries. Files generated by Exchange diagnostic logging. Transport database files (for example, the mail queue database). ReFS : Supported on partitions containing the following Exchange file types: Mailbox databases. Transaction logs. No
  • Installing Exchange SE on a computer running Windows Server Core is fully supported and recommended. The Desktop Experience feature is no longer required.
  • Installing Exchange SE on a computer running Nano Server is not supported.

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