Summary: Use Windows PowerShell to discover what features do in Windows 8.
I found five different Hyper-V features on my Windows 8-based computer, and I want to know how I can use Windows PowerShell to discover what they do.
Use the Get-WindowsOptionalFeature cmdlet and select the feature name and the description of the feature
(this is a single-line command broken for readability at the pipeline character):
Get-WindowsOptionalFeature -Online -FeatureName '*hyper-v*' |
select featurename, description | Format-Table -AutoSize -Wrap