title: pywintypes.error: (50, 'GetFileSecurity', 'The request is not supported.') while using Jupyter Notebook on network drive
body: <p>I am currently trying to use a combination of miniconda + jupyter (installed with pip) on a network drive and I get the following error:</p>
  
  <blockquote>
    <p>pywintypes.error: (50, 'GetFileSecurity', 'The request is not supported.')</p>
  </blockquote>
  
  <p>I am currently working in a corporate set-up, so we are working with some limitations regarding access rights. Unfortunately, I can only try jupyter on network drives, changes to the local hard drive requires admin rights which I don't have.</p>
  
  <p>The full error output:</p>
  
  <pre><code>Traceback (most recent call last):
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\web.py", line 1699, in _execute
     result = await result
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 742, in run
     yielded = self.gen.throw(*exc_info)  # type: ignore
   File "c:\programs\miniconda3_64\lib\site-packages\notebook\services\sessions\handlers.py", line 72, in post
     type=mtype))
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 735, in run
     value = future.result()
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 742, in run
     yielded = self.gen.throw(*exc_info)  # type: ignore
   File "c:\programs\miniconda3_64\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
     kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 735, in run
     value = future.result()
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 742, in run
     yielded = self.gen.throw(*exc_info)  # type: ignore
   File "c:\programs\miniconda3_64\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session
     self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 735, in run
     value = future.result()
   File "c:\programs\miniconda3_64\lib\site-packages\tornado\gen.py", line 209, in wrapper
     yielded = next(result)
   File "c:\programs\miniconda3_64\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
     super(MappingKernelManager, self).start_kernel(**kwargs)
   File "c:\programs\miniconda3_64\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
     km.start_kernel(**kwargs)
   File "c:\programs\miniconda3_64\lib\site-packages\jupyter_client\manager.py", line 240, in start_kernel
     self.write_connection_file()
   File "c:\programs\miniconda3_64\lib\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
     kernel_name=self.kernel_name
   File "c:\programs\miniconda3_64\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
     with secure_write(fname) as f:
   File "c:\programs\miniconda3_64\lib\contextlib.py", line 82, in __enter__
     return next(self.gen)
   File "c:\programs\miniconda3_64\lib\site-packages\jupyter_client\connect.py", line 100, in secure_write
     win32_restrict_file_to_user(fname)
   File "c:\programs\miniconda3_64\lib\site-packages\jupyter_client\connect.py", line 61, in win32_restrict_file_to_user
     sd = win32security.GetFileSecurity(fname, win32security.DACL_SECURITY_INFORMATION)
  ywintypes.error: (50, 'GetFileSecurity', 'The request is not supported.')
  </code></pre>
  
  <p>Any ideas or experience with this type of error?</p>