Find Installed AI Apps on Windows

$pattern = 'ChatGPT|Claude|Copilot|Cursor|Perplexity|Ollama|LM Studio|Gemini|DeepSeek|Windsurf'
$keys = @(
    'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*',
    'HKLM:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'
)
# Per-user installs live in each loaded user hive
Get-ChildItem 'Registry::HKEY_USERS' -ErrorAction SilentlyContinue | ForEach-Object {
    $keys += "Registry::$($_.Name)\Software\Microsoft\Windows\CurrentVersion\Uninstall\*"
}
$found = Get-ItemProperty $keys -ErrorAction SilentlyContinue |
    Where-Object { $_.DisplayName -match $pattern } |
    Select-Object DisplayName, DisplayVersion, Publisher -Unique
if ($found) { $found | Format-Table -AutoSize | Out-String -Width 250 } else { Write-Output 'No known AI apps found.' }