Make usb network a private connection on windows

You can use the following to only run code if it's on windows:
```python
import os

if os.name == 'nt':
```

You can then use powershell to check the status of a network, and mark is as private:

```powershell
Get-NetConnectionProfile
Set-NetConnectionProfile -InterfaceIndex 13 -NetworkCategory Private
```

Python can run powershell in a subprocess, which is probably easiest. I've also written code in the past to use [Python.NET](https://pythonnet.github.io/) to run powershell code within a .NET context that I could give you some pointers from, but that adds more dependencies to your code that you probably don't need.