Installation of Hyper-V Windows2012

When you install Hyper-V in windows 2012 in the add and remove roles you will get an error message “Hyper-V cannot be installed: A hypervisor is already running. Refer screen shot below.











The first thing you need to do is to open and change the PowerShell execution policy scripts to RemoteSigned then run the following command to install the Hyper-V :

C:\> Get-ExcutionPolicy

c:\>Enable-WindowsOptionalFeature –Online -FeatureName Microsoft-Hyper-V –All -NoRestart

The above command installs only the hypervisor but does not install the administration tools, so you can manage the Hyper-V within the virtual machine you must install RSAT for Hyper-V to do this run the following command:

c:\> Install-WindowsFeature RSAT-Hyper-V-Tools -IncludeAllSubFeature


Now I suppose you want to create a cluster then you need to install the Cluster service,  run:

c:\>Install-WindowsFeature RSAT-Clustering -IncludeAllSubFeature


Optionally you can install Multipath I/O to enable multiple paths to the storage, if this is your case follow:

c:\>Install-WindowsFeature Multipath-IO

Then restart Computer



Windows2012 Hyper-V successfully installed.


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