Step By Step Easy Way To Connect Internet On iPhone Using USB Tethering

Install iTunes on your Windows computer. If you're tethering your iPhone to a Windows computer, the computer will need to have iTunes installed in order to connect.
On your iPhone, open the Settings Image titled Iphonesettingsappicon.png app. This may be located in a folder labeled "Utilities".
Tap Cellular. This will be located underneath Bluetooth.
Toggle on Cellular Data. Cellular data needs to be enabled to use Bluetooth internet sharing.
Tap Set Up Personal Hotspot. This button only appears if you've never used the personal hotspot before. If you have used the personal hotspot before, you'll see Personal Hotspot. Once you set up your first hotspot, the Personal Hotspot option will become available in the main Settings menu.
Toggle on Allow Others to Join. Directions will appear on the bottom of the screen.
Plug your iPhone into your computer's USB port. Depending on your iPhone, you may need an Apple Lightning to USB cable or Apple USB-C to USB cable. Make sure your iPhone is unlocked. You may receive a prompt on your iPhone: Trust this computer? Tap Trust.
Click the Network icon on your computer. In Windows, you'll find this in the System Tray, which is next to the clock.
Click your iPhone to select it as your computer's network. Your computer will now use your iPhone's internet connection as you browse the internet. With your iPhone connected, you can also transfer photos to your PC or back up your device.