Before you hit the download button, ensure your environment meets these core specifications: x64 architecture (Intel 64 or AMD64).
Cumulative Update 23 for Exchange Server 2016 (KB5011155) . microsoft exchange server 2016 download 64 bit iso fixed new
Hotfix Update for CU23 (KB5057653) Core System Requirements Minimum Requirement Recommended Processor 64-bit Intel or AMD (x64 architecture) Memory Storage 30 GB free on installation drive 120-150 GB for OS partition Operating System Windows Server 2012 R2 or 2016 (Standard/Datacenter) Note: Exchange 2016 is not supported on Windows Server 2019 Installation Prerequisites Overview of Microsoft Exchange Server 2016 Processor: Before
Microsoft Unified Communications Managed API 4.0, Core Runtime (64-bit) Exchange Server supportability matrix - Microsoft Learn Where to get it: You can download the
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.