Hi, that's great news! Thanks for your kind words!
Yes, everything can be removed.
I don't think there is anything in particular. You can reinstall Malwarebytes if you wish.
To be perfectly honest, this was a shot in the dark, I didn't know what else to try. The issue had me baffled.
I don't think you have caused this. There was likely a corruption within this key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network
I deleted a certain value and after that it worked. Also, at one point we deleted a certain registry key, which I have also restored in my last step.
Let me know if there are any further questions.