Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using TECForGames.Classes;

namespace TECForGames
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            if (!backgroundWorker1.IsBusy)
            {
                backgroundWorker1.RunWorkerAsync();
            }
        }

        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            for (int i = 0; i <= 100; i++)
            {
                Thread.Sleep(50);

                backgroundWorker1.ReportProgress(i);

                if (i == 100)
                {
                    e.Cancel = true;

                    backgroundWorker1.ReportProgress(100);

                    return;
                }

                if (backgroundWorker1.CancellationPending)
                {
                    e.Cancel = true;

                    backgroundWorker1.ReportProgress(0);

                    return;
                }
            }
        }

        private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            progressBar1.Value = e.ProgressPercentage;

            label1.Text = "Loading Game: " + e.ProgressPercentage.ToString() + "%";
        }

        private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            if (e.Cancelled)
            {
                label1.Text = "Loading Game: 100%";

                MainMenu mm = new MainMenu();

                mm.Show();

                Hide();
            }
            else if (e.Error != null)
            {
                label1.Text = e.Error.Message;
            }
            else
            {
                label1.Text = e.Result.ToString();
            }
        }
    }
}