How do I enable USB tethering without turning off the WiFi? I want to tether my phone's WiFi connection to my computer via USB.

There's a setting for USB tethering, but when I enable it there is a message


  Wi-Fi is turned off when USB tethering or Mobile HotSpot is active. To turn on Wi-Fi, please turn off USB tethering or Mobile HotSpot.


But what's the point of tethering if the Wi-Fi is turned off? I have no connection to share with the computer if the Wi-Fi is not on.

If I turn off the Wi-Fi before I try to enable USB tethering, it shows the message


  Unable to connect
  
  You need a network connection to use this application. Please turn on mobile network or Wi-Fi is Settings.


So...it needs Wi-Fi to tether, but when I turn on the tether, it turns off Wi-Fi? I don't understand. How do I keep the connection from being turned off when I try to enable the USB tether?

I'm using an HTC One phone.
I resolved this. The solution seems a little bit hacky, but it worked.

I unplugged the USB cable, turned on the Wi-Fi, enabled the USB tether option, then plugged in the USB. When I plug it in, it shows the message


  Wi-Fi is turned off when USB tethering or Mobile HotSpot is active. To turn on Wi-Fi, please turn off USB tethering or Mobile HotSpot.


and then after a few seconds


  USB tethering is ON


If I turn on the Wi-Fi after the first message but before the second message, the Wi-Fi is not turned off automatically and my computer is able to successfully connect.