Install Ionic

Hi everyone !
I’m a beginner ionic so hope people help me. After i install node.js in windows. I open cmd and it point to C:\Users\ad. Next I play command : npm install -g ionic . Normal it will create data in C:\Users\ad\AppData\Roaming\npm but it create data this C:\Users\ad and that folder npm is empty. I continue play command : ionic start cutePuppyPics --v2. I see project has many unusual file .cmd.

I feel depressed :pensive: . Please help me ! Thank you very much!