Good day! I made an Anaconda update and now it does not start JUPYTER. As and about the usual startup, a window appears with a black background for 5 seconds and in it two lines of the text that do not have time to read, but not catch the pause. After that silence. Run Notebook via Jupyter Navigator, but where there is usually a Python (Default) now Terminals Unavalible. Old files with codes will not be apart. Reinstalling does not solve the problem. Tell me, please, who knows what the problem is?

Answer 1, Authority 100%

Performed 3 actions that helped in solving the problem:
1. Reinstalled anaconda
2. Installed Portalocker module
3. Installed the Terminado module