Install Node.js and npm
https://nodejs.org/en/download/
Then install the Angular CLI globally.
npm install -g @angular/cli
-You can check the version:
node -v
npm -v
-Open a terminal window at that folder (shif + right click for window).
ng new my-app
-Go to the project directory and launch the server.
cd my-app (go to folder project)
ng serve --open