How to fix error ‘There is an instance of anaconda navigator already running’

When trying to open anaconda navigator, you get the error “there is an instance of anaconda navigator already running”. In this short article, you will find out how to fix this error.

On Windows

On Windows,Anaconda navigator launches a process with the name ‘pythonw’. Here is what you would need to do :

Step 1: Run a cmd window prompt with administrator privileges

Step 2 : Here you would need to look up the process with the name ‘pythonw’. For this, run the command :

tasklist | findstr “pythonw”

This will return the process id or pid.

Step 3 : Now the process pid would need to be killed. Run the command:

taskkill /f /pid

Read: How to update Anaconda

On Ubuntu / Debian

On Ubuntu OS, On the anaconda prompt, run the two commands below :

killall Anaconda-Navigator

anaconda-navigator –reset

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