title: Kernel error after updating to Spyder 4.1
body: <p>I updated spyder to 4.1 in anaconda through (conda update spyder), and it doesn't  work unless I open it from the anaconda prompt, otherwise it shows this error: </p>
  
  <p>An error ocurred while starting the kernel
  The error is:</p>
  
  <blockquote>
    <p>Traceback (most recent call last):</p>
    
    <p>File "C:\Users\anwar\Anaconda3\lib\site‑packages\spyder\plugins\ipythonconsole\plugin.py", line 1209, in create_kernel_manager_and_kernel_client<br>
    kernel_manager.start_kernel(stderr=stderr_handle, **kwargs)</p>
    
    <p>File "C:\Users\anwar\Anaconda3\lib\site‑packages\jupyter_client\manager.py", line 267, in start_kernel<br>
    self.kernel = self._launch_kernel(kernel_cmd, env=env, **kw)</p>
    
    <p>File "C:\Users\anwar\Anaconda3\lib\site‑packages\jupyter_client\manager.py", line 211, in _launch_kernel<br>
    return launch_kernel(kernel_cmd, **kw)</p>
    
    <p>File "C:\Users\anwar\Anaconda3\lib\site‑packages\jupyter_client\launcher.py", line 135, in launch_kernel<br>
    proc = Popen(cmd, **kwargs)</p>
    
    <p>File "C:\Users\anwar\Anaconda3\lib\subprocess.py", line 775, in <strong>init</strong>
    restore_signals, start_new_session)</p>
    
    <p>File "C:\Users\anwar\Anaconda3\lib\subprocess.py", line 1178, in _execute_child
    startupinfo)</p>
    
    <p>FileNotFoundError: [WinError 2] The system cannot find the file specified</p>
  </blockquote>
  
  <p>and in the corner, it still shows spyder 3.7</p>