batchflow shouold have been installed and configured during installation.
The file is located at: C:\tools\Anaconda3\Scripts\batchflow.exe
First, please check if the file exists in the directory that I indicated above. If it does not exist, then perhaps you might consider doing a re-install using the “Custom” install option as indicated here: https://www.hark.jp/document/hark-document-en/sect0019.html, and make sure to check HARK and HARK-Python.
If it does exist, then you might consider adding the C:\tools\Anaconda3\Scripts\ in your %PATH% environment variable. Right click on This PC -> Properties -> Advanced System Settings -> Advanced -> Environment Variables. Then add the C:\tools\Anaconda3\Scripts\ to the PATH environment variable for your user.
Please let me know how it goes. If you still encounter problems, kindly post the details here.