Program.cs

namespace Unmark;

internal static class Program
{
    private static int Main(string[] args)
    {
        string root = Directory.GetCurrentDirectory();

        if (args.Length > 0 && Directory.Exists(args[0]))
            root = Path.GetFullPath(args[0]);

        Console.WriteLine($"Removing Mark of the Web from:\n{root}\n");

        int filesChecked = 0;
        int removed = 0;
        int failed = 0;

        try
        {
            foreach (string file in Directory.EnumerateFiles(root, "*", SearchOption.AllDirectories))
            {
                filesChecked++;

                string motwPath = file + ":Zone.Identifier";

                try
                {
                    DateTime lastWriteTimeUtc = File.GetLastWriteTimeUtc(file);
                    DateTime creationTimeUtc = File.GetCreationTimeUtc(file);
                    DateTime lastAccessTimeUtc = File.GetLastAccessTimeUtc(file);

                    if (File.Exists(motwPath))
                    {
                        File.Delete(motwPath);

                        File.SetCreationTimeUtc(file, creationTimeUtc);
                        File.SetLastAccessTimeUtc(file, lastAccessTimeUtc);
                        File.SetLastWriteTimeUtc(file, lastWriteTimeUtc);

                        removed++;
                        Console.WriteLine($"Unblocked: {file}");
                    }
                }
                catch (Exception ex)
                {
                    failed++;
                    Console.WriteLine($"Failed: {file}");
                    Console.WriteLine($"  {ex.Message}");
                }
            }

            Console.WriteLine();
            Console.WriteLine($"Done. Checked: {filesChecked}, Unblocked: {removed}, Failed: {failed}");
            return failed > 0 ? 1 : 0;
        }
        catch (Exception ex)
        {
            Console.WriteLine("Fatal error:");
            Console.WriteLine(ex);
            return 2;
        }
    }
}