[FIXED] There is an instance of anaconda navigator already running error

Issue

Previously my anaconda navigator was not responding so I have rebooted my computer and now when I am trying to open anaconda navigator it pop-ups an error with "there is an instance of anaconda navigator already running".

OS: Windows 10

Solution

I met the same problem a few days ago. I found the anaconda navigator will start a process called pythonw. So the following is my solution:

1. open a cmd window;
2. use command tasklist | findstr "pythonw" to find the pid of pythonw, like 37200;
3. use command tskill 37200 to kill the process.

By the way, my OS is Windows.

Answered By - Zhikun Luo