*Update*
I've gone to add a device in the control panel and it recognises my phone but when I try to add it it says
"That didn't work
Windows doesn't have a network profile for this device."
I don't know if I need to have an internet connection for that to work because I don't have one for my computer.
(Hence why I'm connecting my phone for tethering, and no my computer doesn't have wireless networking)