I don’t believe that PowerCLI 5.1 is yet officially supported on Windows 8, however that’s where I wanted to run it. While carrying out the installation I hit this issue, i.e. .NET Framework 2.0 was not installed as a pre-requisite. This is because PowerShell 3.0 on Windows 8 uses .NET 4 and no longer has .NET 2.0 as a requirement. To install .NET Framework 2.0 in Windows 8 you need to turn on .