FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read); Arguments: << path Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.41108.0&File=mscorlib.dll&Key=FileSecurityState_OperationNotPermitted The line of code above has an error [FileSecurityState_OperationNotPermitted]