Error hresult on speechrecognitionengine

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C#

errors

I am getting this error on an app that used to work correctly, but now everytime I run the app I get this error.
Can someone please help me?
I get the error on this line:

SpeechRecognitionEngine sRecognize = new SpeechRecognitionEngine(); 

Here is the code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Speech.Synthesis;
using System.Speech.Recognition;
using System.Threading;
using System.Speech.AudioFormat;
using NAudio.Wave;
using NAudio.Lame; 

namespace Note_Taker__
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        SpeechSynthesizer sSynth = new SpeechSynthesizer();
        PromptBuilder pBuilder = new PromptBuilder();
        SpeechRecognitionEngine sRecognize = new SpeechRecognitionEngine();        

        private void newToolStripMenuItem_Click(object sender, EventArgs e)
        {
            richTextBox1.Text = "";
        }

        private void openToolStripMenuItem_Click(object sender, EventArgs e)
        {
            DialogResult dr = openFileDialog1.ShowDialog();
            if(dr==DialogResult.OK){
                richTextBox1.LoadFile(openFileDialog1.FileName);
            }
        }

        private void saveToolStripMenuItem_Click(object sender, EventArgs e)
        {
            DialogResult dr = saveFileDialog1.ShowDialog();
            if (dr == DialogResult.OK)
            {
                richTextBox1.SaveFile(saveFileDialog1.FileName);
            }
        }

        private void exitToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void speak_Click(object sender, EventArgs e)
        {
            pBuilder.ClearContent();
            pBuilder.AppendText(richTextBox1.Text);
            sSynth.Speak(pBuilder);
        }

        private void start_Click(object sender, EventArgs e)
        {
	    
        }
        /*private void sRecognize_SpeechRecognized(object sender, SpeechRecognizedEventArgs e) {
            if(e.Result.Text=="exit"){
                Application.Exit();
            }
            else {
                richTextBox1.Text = richTextBox1.Text + "" + e.Result.Text.ToString();
            }
            //MessageBox.Show("Speech Recognized: "+e.Result.Text.ToString());
        }*/
       
    }
}

Can someone also please help me in increasing the level of confidence I can have for the speech to text conversion in this app?
Thanks.

What I have tried:

I tried placing public static on the speechrecognitionengine variable.
I didn't try anything else, because I don't understand the rror.
It says something about file not found, but I included the system.speech reference and I am also using it in the code, so I don't know what's wrong.