Note on accuracy: Microsoft Exchange Server 2016 is no longer in mainstream support (extended support ends October 14, 2025). Microsoft does not release "new" ISO files with cumulative updates pre-slipped. Therefore, this post explains how to get the original RTM ISO and immediately apply the latest CU (Cumulative Update) to get a "fixed" functional state.

To download the Microsoft Exchange Server 2016 64-bit ISO file, follow these steps:

The only official source is the Microsoft Volume Licensing Service Center (VLSC) if you have a license, or the Microsoft Evaluation Center for a 180-day trial.

  1. Download the RTM ISO and extract it to a folder (e.g., C:\Exchange2016_RTM).
  2. Download the latest Cumulative Update (e.g., ExchangeServer2016-KBxxxxxx-x64.exe).
  3. Open Command Prompt as Administrator.
  4. Run the following command to unpack the CU into the same folder:
    ExchangeServer2016-KBxxxxxx-x64.exe /Mode:Unpack /TargetDir:C:\Exchange2016_Fixed
    
  5. Copy the extracted CU files over the RTM files (overwrite when prompted).

https://www.microsoft.com/en-us/download/details.aspx?id=49210

The "fixed new" version typically refers to Cumulative Update 23 (CU23) or any post-CU23 hotfix rollup. As of 2026, CU23 with the latest Security Update for Exchange Server 2016 is the definitive stable release.


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17