check_installed_program.ps1

# Check for all programs in both 32-bit and 64-bit uninstall registry paths matching the given program name
$ProgramName = ""  # Running empty will list all programs

$programMatches = @()
$registryPaths = @(
    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*",
    "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*",
    "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*"
)

foreach ($path in $registryPaths) {
    $apps = Get-ItemProperty $path -ErrorAction SilentlyContinue |
    Where-Object { $_.DisplayName -like "*$ProgramName*" } |
    Select-Object DisplayName, DisplayVersion, Publisher, InstallDate

    if ($apps) {
        $programMatches += $apps
    }
}

if ($programMatches.Count -gt 0) {
    Write-Host "$ProgramName Programs Installed:`n" -ForegroundColor Green
    $programMatches | Format-Table -AutoSize
}
else {
    Write-Output "No installed programs found matching: $ProgramName"
}