Generate Secure GUID, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Security.Cryptography;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            byte[] bytes = {
                 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x00, 0x00
            };

using (var rng = new RNGCryptoServiceProvider())
            {
                rng.GetBytes(bytes);
            }

var time = BitConverter.ToUInt32(bytes, 0);
            var time_mid = BitConverter.ToUInt16(bytes, 4);
            var time_hi_and_ver = BitConverter.ToUInt16(bytes, 6);

time_hi_and_ver = (ushort)((time_hi_and_ver | 0x4000) & 0x4FFF);

bytes[8] = (byte)((bytes[8] | 0x80) & 0xBF);

var id = new Guid(time, time_mid, time_hi_and_ver,
                bytes[8],  bytes[9],  bytes[10], bytes[11],
                bytes[12], bytes[13], bytes[14], bytes[15]
            );
            
            Console.WriteLine(id);
        }
    }
}

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Compilation time: 0,19 sec, absolute running time: 0,11 sec, cpu time: 0,11 sec, average memory usage: 13 Mb, average nr of threads: 2