Patrick Domingues

# PatrickDomingues.com
# Zevonix.com

# PowerShell Script to Force Uninstall Umbrella Roaming Client

# Ensure the script is running with administrative privileges
if (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
    Write-Error "This script requires administrative privileges. Please run as Administrator."
    exit
}

# Stop the Umbrella_RC service
Write-Host "Stopping the Umbrella_RC service..."
try {
    Stop-Service -Name "Umbrella_RC" -Force -ErrorAction Stop
    Write-Host "Service stopped successfully."
} catch {
    Write-Warning "Failed to stop the Umbrella_RC service: $($_.Exception.Message)"
}

# Attempt uninstall via WMIC
Write-Host "Attempting to uninstall Umbrella Roaming Client using WMIC..."
try {
    wmic Product where "name='Umbrella Roaming Client (x86)'" call uninstall > $null
    Write-Host "Uninstallation using WMIC completed."
} catch {
    Write-Warning "Failed to uninstall using WMIC: $($_.Exception.Message)"
}

# Attempt uninstall using MSI
$msiPath = "C:\Program Files (x86)\OpenDNS\Umbrella Roaming Client\"  # Replace with the actual path to the setup MSI
if (Test-Path $msiPath) {
    Write-Host "Attempting to uninstall Umbrella Roaming Client using MSI..."
    try {
        Start-Process msiexec.exe -ArgumentList "/x `"$msiPath`" /qn" -Wait -NoNewWindow
        Write-Host "Uninstallation using MSI completed."
    } catch {
        Write-Warning "Failed to uninstall using MSI: $($_.Exception.Message)"
    }
} else {
    Write-Warning "MSI file not found at $msiPath. Skipping MSI uninstall step."
}

# Manual removal if previous steps fail
Write-Host "Performing manual removal of Umbrella Roaming Client..."
try {
    # Delete the Umbrella_RC service
    sc.exe delete "Umbrella_RC"
    Write-Host "Service deleted successfully."

    # Remove folders
    $folders = @(
        "C:\ProgramData\OpenDNS\ERC",
        "C:\Program Files (x86)\OpenDNS"
    )
    foreach ($folder in $folders) {
        if (Test-Path $folder) {
            Remove-Item -Path $folder -Recurse -Force
            Write-Host "Deleted folder: $folder"
        } else {
            Write-Host "Folder not found: $folder"
        }
    }

    # Reset DNS settings
    Write-Host "Resetting DNS settings to obtain automatically..."
    $adapters = Get-NetAdapter -Physical | Where-Object { $_.Status -eq "Up" }
    foreach ($adapter in $adapters) {
        Write-Host "Resetting DNS for adapter: $($adapter.Name)"
        Set-DnsClientServerAddress -InterfaceAlias $adapter.Name -ResetServerAddresses
    }
    Write-Host "DNS settings reset successfully."

} catch {
    Write-Warning "An error occurred during manual removal: $($_.Exception.Message)"
}

Write-Host "Umbrella Roaming Client uninstallation completed."