Write Webcam Capture Tp Specific Folder

I have a webcam capture script but I am having trouble trying to figure out how to get it to write the image to somewhere more easy to find like a folder on my desktop where I can store and retrieve the web camera captures from.

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 using System.Collections.Generic;
 using System.IO;
 
 public class WebCamScript : MonoBehaviour {
 
     public RawImage rawimage;
     WebCamTexture webCamTexture;
     private string absolutePath = "./Surveillance/CamCapture";
     string fileName = "filename";
     
     void Start () {
         if (!System.IO.Directory.Exists (absolutePath))
             System.IO.Directory.CreateDirectory (absolutePath);
         if (Application.isEditor)
             absolutePath = "Assets/WebcamSnaps";
 
         WebCamDevice[] cam_devices = WebCamTexture.devices;
         webCamTexture = new WebCamTexture(cam_devices[0].name, 480, 640, 30);
         rawimage.texture = webCamTexture;
         if(webCamTexture != null){
             //webCamTexture.Play();
         }
     }
     
     void Update () 
     {
         
     }
 
     public void GoWebCam01(){
         //Start streaming the images captured by the webcam into the texture
         webCamTexture.Play();
     }
     
     public void GoWebCamStop(){
         //Start streaming the images captured by the webcam into the texture
         webCamTexture.Stop();
     }
 
 
     //NOTE: This method seems to capture a web camera photo but freezes the camera image.
     public void TakePhoto()
     {
         webCamTexture.Pause();
         BlitImage();
 
     }
     void BlitImage()
     {
         
         Texture2D destTexture = new Texture2D(webCamTexture.width, webCamTexture.height, TextureFormat.ARGB32, false);
 
         Color[] textureData = webCamTexture.GetPixels();
 
         destTexture.SetPixels(textureData);
         destTexture.Apply();
         byte[] pngData = destTexture.EncodeToPNG();
         //if(File.Exists(Application.persistentDataPath+"/capturedPic2.png"))
         if(File.Exists("WebcamSnaps" + "photo.png"))
         {
             //File.Delete(Application.persistentDataPath+"/capturedPic2.png");
             File.Delete("WebcamSnaps" + "photo.png");
         }
         //File.WriteAllBytes(Application.persistentDataPath+"/capturedPic2.png",pngData);
         File.WriteAllBytes("WebcamSnaps" + "photo.png",pngData);
         //Debug.Log("pic saved to"+Application.persistentDataPath);
 
         Debug.Log("WebcamSnaps");
 
     }
 }