# This script is designed for use in Datto RMM (CentraStage).
# Purpose: Uninstall all "Microsoft Visual C++ 2010 ... Redistributable" (x86/x64), version independent.
#
# Example run / expected output:
# Uninstall Microsoft Visual C++ 2010
# Found: Microsoft Visual C++ 2010  x64 Redistributable - 10.0.40219, Microsoft Visual C++ 2010  x86 Redistributable - 10.0.40219
# Uninstall (MSI) Microsoft Visual C++ 2010  x64 Redistributable - 10.0.40219 -> msiexec /X{1D8E6291-B0D5-35EC-8441-6616F567A0F7} /quiet /norestart
# Uninstall (MSI) Microsoft Visual C++ 2010  x86 Redistributable - 10.0.40219 -> msiexec /X{F0C3E5D1-1ADE-321E-8167-68EF0DE699A5} /quiet /norestart
# Completed: all target items successfully removed (or not present).
#
# Usage in Datto RMM:
# - Create a new Component → Script (PowerShell).
# - Paste this script in the code editor.
# - Run As: System
# - Architecture: 64-bit
# - Test on one device before wide rollout.
# - Deploy via Job or Policy at the Site level to target all devices.
#
# Exit codes:
#   0 = OK (nothing found or everything removed successfully)
#   1 = Failures occurred

$ErrorActionPreference = 'Stop'
$fails = 0

function Invoke-Uninstall {
    param(
        [string]$CmdLine,
        [string]$AppName
    )

    if (-not $CmdLine) {
        Write-Warning ("No UninstallString found for " + $AppName)
        $script:fails++
        return
    }

    # Normalize to exe + args
    $exe = $null
    $args = ""
    if ($CmdLine -match '^\s*"(.+?)"\s*(.*)$') {
        $exe  = $Matches[1]
        $args = $Matches[2]
    } elseif ($CmdLine -match '^\s*(\S+)\s*(.*)$') {
        $exe  = $Matches[1]
        $args = $Matches[2]
    }

    # MSI: force silent uninstall
    if ($exe -match '(?i)msiexec\.exe') {
        if ($args -match '(?i)/I\s*{([0-9A-F\-]+)}') {
            $guid = $Matches[1]
            $args = "/x {" + $guid + "} /quiet /norestart"
        } else {
            if ($args -notmatch '(?i)/x') { $args = "/x " + $args }
            if ($args -notmatch '(?i)/quiet|/qn') { $args = $args + " /quiet" }
            if ($args -notmatch '(?i)/norestart') { $args = $args + " /norestart" }
        }
        Write-Output ("Uninstall (MSI) " + $AppName + " -> msiexec " + $args)
    } else {
        # Non-MSI: try to enforce silent switches
        if ($args -notmatch '(?i)/quiet|/qn|/silent|/s') { $args = $args + " /quiet" }
        if ($args -notmatch '(?i)/norestart') { $args = $args + " /norestart" }
        Write-Output ("Uninstall (EXE) " + $AppName + " -> " + $exe + " " + $args)
    }

    try {
        $p = Start-Process -FilePath $exe -ArgumentList $args -Wait -PassThru -WindowStyle Hidden
        $code = $p.ExitCode
        # Common msiexec codes: 0=success, 3010=reboot required, 1605=not installed
        if ($exe -match '(?i)msiexec\.exe') {
            if ($code -in 0,3010,1605) {
                if ($code -eq 3010) { Write-Output ("Note: reboot required (3010) for " + $AppName) }
                elseif ($code -eq 1605) { Write-Output ("Not installed (1605) for " + $AppName + ", skipping.") }
                return
            }
        } else {
            if ($code -eq 0) { return }
        }
        Write-Warning ("Uninstall failed for " + $AppName + " with exit code " + $code)
        $script:fails++
    } catch {
        $msg = $_.Exception.Message
        Write-Warning ("Error while uninstalling " + $AppName + ": " + $msg)
        $script:fails++
    }
}

# Pre-check: look for target apps
$uninstallKeys = @(
    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*",
    "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*"
)

$targets = foreach ($key in $uninstallKeys) {
    Get-ItemProperty -Path $key -ErrorAction SilentlyContinue |
        Where-Object {
            $_.DisplayName -and ($_.DisplayName -like "Microsoft Visual C++ 2010*Redistributable*")
        }
}

if (-not $targets) {
    Write-Output "No Microsoft Visual C++ 2010 Redistributables found. Nothing to do."
    exit 0
}

$foundList = ($targets.DisplayName | Sort-Object -Unique) -join ", "
Write-Output ("Found: " + $foundList)

# Uninstall each item
foreach ($app in $targets) {
    $name = $app.DisplayName
    $cmd  = if ($app.QuietUninstallString) { $app.QuietUninstallString } else { $app.UninstallString }
    Invoke-Uninstall -CmdLine $cmd -AppName $name
}

if ($fails -gt 0) {
    Write-Output ("Completed with errors: " + $fails + " item(s) failed to uninstall.")
    exit 1
} else {
    Write-Output "Completed: all target items successfully removed (or not present)."
    exit 0
}