The following table outlines the supported upgrade paths that are available to upgrade to Windows Server storage keeping units (SKUs). Notes. Unless otherwise specified, all SKUs that are included in this article are x86 and x64 versions. No upgrade paths are available for Windows Server Web Edition. Current operating system. Supported path. Dec 23,  · If the server is an Active Directory domain controller, you cannot convert it to a retail version. See Upgrade Domain Controllers to Windows Server R2 and Windows Server for important information. Upgrades from pre-release versions (previews) of Windows Server are not supported. Perform a clean installation of Windows Server. Mar 31,  · Super-Speedy In-Place Upgrade of Windows Server Standard to Enterprise or Data Center. Or maybe you want to switch from R2 Standard to R2 Datacenter because of the additional VM licensing that is included? These are not uncommon scenarios, and fortunately, there is a way to do this that can get you up and running within 10 minutes.
 
 

How to In-Place Upgrade Windows Server R2 to Windows Server | Argon Systems.

 
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– Upgrade Windows Server R2 to Windows Server R2 | Microsoft Docs

 
 
In-place upgrade enables you to keep the same hardware and all the server roles you have set up without wiping and reinstalling the operating. Running an in-place upgrade on Windows Server / R2 will allow upgrading to newer versions of Windows Server. Let’s see what the process.