Remove-Steam-Games-From-Registry.ps1

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

function Get-SteamGames {
    $steamGames = @()
    
    foreach ($path in $registryPaths) {
        if (Test-Path $path) {
            $uninstallKeys = Get-ChildItem $path -ErrorAction SilentlyContinue
            
            foreach ($key in $uninstallKeys) {
                try {
                    $props = Get-ItemProperty $key.PSPath -ErrorAction SilentlyContinue
                    
                    # Check if it's a Steam game - improved detection logic
                    $keyName = $key.Name.Split('\')[-1]  # Get just the key name, not full path
                    $isSteamGame = $false
                    
                    if ($props -and $keyName -like "Steam App *" -and $props.UninstallString -match 'steam\.exe.*steam://uninstall/') {
                        $isSteamGame = $true
                    }
                    
                    if ($isSteamGame) {
                        $steamGames += [PSCustomObject]@{
                            Name = $props.DisplayName
                            Publisher = $props.Publisher
                            Version = $props.DisplayVersion
                            InstallLocation = $props.InstallLocation
                            UninstallString = $props.UninstallString
                            RegistryKey = $key.Name
                            RegistryPath = $key.PSPath
                            KeyName = $keyName
                        }
                    }
                }
                catch {
                    # Skip entries that can't be read
                    continue
                }
            }
        }
    }
    
    return $steamGames | Sort-Object Name
}

Get-SteamGames |% { Remove-Item $_.RegistryPath -Recurse -Force }