Tenable Uninstall PowerShell

tenableuninstall.ps1

# Single MSI GUID to remove
$guid = '{GUID}'

# 1) Stop any Tenable/Nessus services so the MSI can uninstall cleanly
#    Adjust the service names as needed for your environment.
Get-Service -DisplayName '*Tenable*','*Nessus*' -ErrorAction SilentlyContinue |
    Stop-Service -Force -ErrorAction SilentlyContinue

# 2) Run the silent uninstall
Write-Output "Starting uninstall of $guid..."
$proc = Start-Process -FilePath 'msiexec.exe' `
                      -ArgumentList "/x $guid /qn /norestart" `
                      -Wait -PassThru

# 3) Capture and interpret the exit code
$rc = $proc.ExitCode
Write-Output "msiexec returned exit code $rc"

switch ($rc) {
    0    { Write-Output "→ Uninstall succeeded (0)"; exit 0 }
    3010 { Write-Output "→ Uninstall succeeded but reboot required (3010)"; exit 3010 }
    1605 { Write-Warning "→ Product not installed (1605) — treating as success"; exit 0 }
    1618 { Write-Warning "→ Another install in progress (1618) — will retry later"; exit 1 }
    1601 { Write-Warning "→ Installer service inaccessible (1601)"; exit 1 }
    default {
        Write-Warning "→ Uninstall failed with unexpected code $rc"
        exit 1
    }
}