When starting Anaconda, there is an instance of anaconda navigator already running pops up

When Anaconda is opened, the pop-up box There is an instance of anaconda navigator already running error means that anaconda is already running, but you cannot view it in the task manager. At this time, we can choose to use the CMD command to end the process.

1. Open cmd
2. Enter the command statement in the cmd window: tasklist | findstr "pythonw" (find the PID of pythonw, such as: PID is 16940)

3. Enter the command statement in the cmd window: taskkill /pid 16940 /f

**Note: **An error was reported when using tasklist, not 'tasklist' is not an internal or external command, nor is it a runnable program, because this module is not added to the environment variable, just add it, I will attach the solution here