I'm having trouble starting jupyter lab.
See the article that you can start jupyter lab if you install ANACONDA
I installed ANACONDA->set path with system environment variables->command prompt->I entered jupyter lab, but I can't start it ...
For path, enter the above.
Would you please teach me if you understand the cause?

C: \ Users \ username>jupyter lab
'jupyter' is an internal or external command,
It is not recognized as an operable program or batch file.

What I tried

Considering the possibility that the path does not pass, set the path with the system environment variable and set the path.
I restarted my PC.
I don't know if it's related, but python -V will return the python version.

Supplementary information (FW/tool version, etc.)

I am using HOME of WINDOWS 10.