How to save bytes data to image

using memory stream

MemoryStream m = new MemoryStream(bytes); 

System.Drawing.Image MyImage = System.Drawing.Image.FromStream(m);

MyImage.Save(filepathandname)

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using fileupload control

fileUpload1.FileBytes;

string filepathandname = Server.MapPath(string.Format("~/uploads/{0}-{1}.{2}", DateTime.Now.ToShortDateString(), Guid.NewGuid(), ".png"));

MyImage.Save(filepathandname)