Question: how to connect iphone portable hotspot to windows 7 pc via usb?
Answer: Step 1: Download the latest version of iTunes for Windows on your PC, install the program and run it.
Step 2: Activate the Personal Hotspot on your iPhone. ... 
Step 3: Connect your iPhone to your PC via the USB cable. ... 
Step 4: Make sure your PC connected successfully to your tethered iPhone.