installAndConfWSL.ps1

$makeInstall = "C:\UbuntuWSL\ubuntu1604.exe install --root"
$mustBeRoot = "C:\UbuntuWSL\ubuntu1604.exe config --default-user root"
$runShellScript = "C:\UbuntuWSL\ubuntu1604.exe run `"/mnt/c/UbuntuWSL/configureWsl.sh`""
$setDefaultUser = "C:\UbuntuWSL\ubuntu1604.exe config --default-user $env:USERNAME"
$Source = "\\nas.dbs.fr\windows\Scripts\WSL\configureWsl.sh"

if (-not (Test-Path C:\Windows\System32\bash.exe))
{
    $ProgPref = $ProgressPreference
    $ProgressPreference = 'SilentlyContinue'
    $results = Enable-WindowsOptionalFeature -FeatureName Microsoft-Windows-Subsystem-Linux -Online -NoRestart -WarningAction SilentlyContinue
    $ProgressPreference = $ProgPref
    if ($results.RestartNeeded -eq $true)
    {
        Restart-Computer -Force
    }
}
else
{
    if ( -not (Test-Path -Path 'C:\UbuntuWSL' -PathType Container) )# -not
    {
        Invoke-WebRequest -Uri https://aka.ms/wsl-ubuntu-1604 -OutFile C:\Temp\ubuntu.zip -UseBasicParsing
        Expand-Archive C:\Temp\ubuntu.zip C:\UbuntuWSL -Force
        Invoke-Expression -Command:$makeInstall

        Copy-Item $Source -Destination C:\UbuntuWSL

        Invoke-Expression -Command:$mustBeRoot
        Invoke-Expression -Command:$runShellScript
        Invoke-Expression -Command:$setDefaultUser
    }
}