Internal error 28173 when installing vCenter Server 5.1.0

When installing vCenter Server 5.1 (VMware-VIMSetup-all-5.1.0-1065152.iso) on a Windows Server 2012 server you might get error ‘Internal error 28173’  when using the Simple Install or during installation of the Single Sign On component.


This is caused because one of the requirements of vCenter Server install is missing: .NET Framework 3.5

To resolve, go to Server Manager , select the Add roles and features wizard and install .NET Framework 3.5 features.

After completion start the installation of vCenter Server again.


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