Install & Configure the required roles and features for MECM

Install-MECMServerRolesFeatures.ps1

# Define the log file
$logFile = "C:\Windows\Temp\FeatureInstall.log"

# Define the source files location for .NET Framework 3.5
$dotNet35InstallerPath = "D:\sources\sxs"  # replace with your actual path

# Define the source file location for .Net Framework 4.8
$dotNet48InstallerPath = "F:\Installers\ndp48-x86-x64-allos-enu.exe"

# Define the features to install
$features = @(
    "Web-Windows-Auth",  # Windows Authentication
    "Web-ISAPI-Ext",  # ISAPI Extensions
    "Web-Metabase",  # Metabase
    "Web-WMI",  # IIS 6 Management Compatibility
    "RDC",  # Remote Differential Compression
    "Web-Asp-Net",  # ASP.NET
    "Web-Asp-Net45",  # ASP.NET 4.5
    "NET-HTTP-Activation",  # HTTP Activation
    "NET-Non-HTTP-Activ",  # Non-HTTP Activation
    "BITS",  # BITS Server Extensions
    "UpdateServices",  # WSUS
    "UpdateServices-DB"  # WSUS with SQL Server database
)

# Function to log messages
function Write-Log {
    param (
        [Parameter(Mandatory=$true)]
        [string] $Message
    )

    $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
    Add-Content -Path $logFile -Value "$timestamp - $Message"
}

try {
    # Check if .NET Framework 3.5 feature is not already installed
    if (!(Get-WindowsFeature -Name NET-Framework-Features).Installed) {
        # Install the .NET Framework 3.5 feature with source files
        Install-WindowsFeature -Name NET-Framework-Features -Source $dotNet35InstallerPath -ErrorAction Stop
        Write-Log "Successfully installed NET-Framework-Features"
    } else {
        Write-Log "NET-Framework-Features is already installed"
    }
} catch {
    Write-Log "Failed to install NET-Framework-Features: $_"
}

# Check if .NET Framework 4.8 is already installed
$dotNetVersionKey = "HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full"
if (Test-Path $dotNetVersionKey) {
    $dotNetVersion = (Get-ItemProperty -Path $dotNetVersionKey -Name Release).Release
    if ($dotNetVersion -ge 528040) {
        Write-Log ".NET Framework 4.8 is already installed."
    } else {
    
    # Install .NET Framework 4.8
    $process = Start-Process -FilePath $dotNet48InstallerPath -ArgumentList "/q /norestart" -PassThru -Wait
    $process.WaitForExit()

    # Check the exit code of the installation
    $exitCode = $process.ExitCode
    if ($exitCode -eq 0) {
        Write-Log "Successfully installed .NET Framework 4.8."
    }
    if ($exitCode -eq 5100) {
        Write-Log ".Net Framework 4.8 is already installed. Exit code: $exitCode"
        } else {
        Write-Log "Failed to install .NET Framework 4.8. Exit code: $exitCode"
    }
    }
}




# Loop through each other feature
foreach ($feature in $features) {
    try {
        # Check if the feature is not already installed
        if (!(Get-WindowsFeature -Name $feature).Installed) {
            # Install the feature
            Install-WindowsFeature -Name $feature -IncludeManagementTools -ErrorAction Stop
            Write-Log "Successfully installed $feature"
        } else {
            Write-Log "$feature is already installed"
        }
    } catch {
        Write-Log "Failed to install $feature : $_"
    }
}