Step 1, disable the adapter for Internet connection in Windows.
Step 2, connect the iPhone to the PC by a USB cable.
Step 3, in the iPhone “personal hotspot” settings, enable “USB only” Internet sharing.
(A new adapter in Windows will appear (“Local Area Connection 2” here)
Step 4, in the property of the adapter for Internet in Windows, enable “Internet Connection Sharing”.
In the “Settings”, select the needed services.
Step 5, re-enable the adapter for Internet in Windows.