#108: How to find the version of .NET installed using Powershell

Below is small snippet that might help you in this case. 

# Get installed versions of .NET Framework

$dotNetVersions = Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -Recurse | Get-ItemProperty -Name Version -ErrorAction SilentlyContinue | Where-Object { $_.Version -match '^4.' -or $_.Version -eq 'v2.0.50727' }

# Output information about each installed .NET Framework version

foreach ($version in $dotNetVersions) {

    Write-Output ".NET Framework Version: $($version.Version)"

    Write-Output "-----------------------------"

}