To install or uninstall features and roles in Server Core using PowerShell:

1. At the command line, type powershell and press enter to use Windows PowerShell. The command line will display PS (example: PS C:\\Windows\\System32>)
2. View available and installed features and roles:
   • Type Get-WindowsFeature and press enter to view everything (the list of available features, and the features that are currently installed)
   • Type Get-WindowsFeature | where Installed and press enter to view only installed roles and features
   • Type Get-WindowsFeature | where InstallState -eq Available and press enter to view only the features and roles tha are available and not installed
3. Type Install-WindowsFeature Role-or-Feature -IncludeManagementTools and press enter to install a role or feature (example: Install-WindowsFeature DNS -IncludeManagementTools). Under the Success header, if True is displayed, the installation was successful.

1. Type Get-WindowsFeature | where Installed and press enter to confirm that the feature or role is checked

If you want to uninstall a feature or role, simply replace Install-WindowsFeature with Uninstall-WindowsFeature (example: Uninstall-WindowsFeature DNS)