Comments by Aditya Chauhan (Top 61 by date)

var desk = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
string[] fde = Directory.GetFiles(desk, "*.*", SearchOption.AllDirectories);
string path = Directory.GetParent(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)).FullName;
string path1 = string.Empty;
if (Environment.OSVersion.Version.Major >= 6)
{
path1 = Directory.GetParent(path).ToString();
}
var direc = Path.Combine(path1, "Downloads");
string[] falaa = Directory.GetFiles(direc, "*.*", SearchOption.AllDirectories);
string[] drives = Directory.GetLogicalDrives();
string[] listPaths = fde.Union(falaa).ToArray();
List<string> paths = new List<string>();
foreach (string d in drives)
{
string[] d1 = Directory.GetDirectories(d);
paths.AddRange(listPaths.Union(d1));
}

foreach (string full in paths)
{

string[] a = new string[] { full };
System.IO.File.AppendAllLines(filepath, a);
}