Entra Connect prerequisites
Microsoft's edit ·
Microsoft's commit message in MicrosoftDocs/entra-docs · commit 415188e · +0 −5 lines · also on GitHub
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Microsoft Entra Connect must be installed on a domain-joined server.
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We recommend using Windows Server 2025 or Windows Server 2022. You can also deploy Microsoft Entra Connect on older Windows Server versions that are in extended support; however, support for this configuration may require [a paid support program](/lifecycle/policies/fixed#extended-support).
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−> [!IMPORTANT]
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−> There is a [known issue](/windows/release-health/resolved-issues-windows-server-2025#directory-synchronization-fails-for-ad-groups-exceeding-10-000-members) on Windows Server 2025 that can cause Microsoft Entra Connect Sync to encounter synchronization problems. If you upgraded to Windows Server 2025, make sure you have installed [October 20, 2025 - KB5070773](https://support.microsoft.com/topic/october-20-2025-kb5070773-os-build-26100-6901-out-of-band-f8effaa1-1c73-41e5-bcb3-e58a46c7601e) update, or later. After installing this update, restart the server for the changes to take effect.
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- The minimum .NET Framework version required is 4.6.2, and newer versions of .NET are also supported. The .NET version 4.8 and greater offers the best accessibility compliance.
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- Microsoft Entra Connect can't be installed on Small Business Server or Windows Server Essentials before 2019 (Windows Server Essentials 2019 is supported). The server must be using Windows Server standard or better.
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Microsoft's Markdown source from MicrosoftDocs/entra-docs, © Microsoft Corporation, under MIT. Changed lines with up to 3 unchanged lines around each; ChangeIntel kept this copy 9 Oct 22:35 UTC. The commit date is when the source changed, which can be hours or days before Learn published it.