How to remove "Hyper-V Extensible Virtual Switch" after Hyper-V uninstalled?

I have uninstalled Hyper-V and it's virtual ethernet switch, as shown in the screenshot, however the "Extensible Virtual Switch" are stuck in there. Try to uninstall that gives me an 0x80071779 error.

A post in social.technet.microsoft.com suggests to uninstall the physical adapter in device manager, then scan for hardware changes. Sadly it doesn't work for me.