To add the Racket command-line programs to your Windows 10 PATH:
Click the Windows search box, type the word path, and then click on Edit the system environment variables.
Click on the Environment Variables button. In the top window, which contains your user variables, find Path and double-click it to open.
Click the New button and either use the
Restart your Windows terminal (either the Command Prompt or PowerShell) and now racket and
Alternatively, follow these instructions.