Can you explain why interent connection would care about windows or linux?
Im intrigued why you think that matters.
As for speed no idea what update would slow you down...but then again i wouldnt pick windows for a critical job like mining.
For 1660 super what are your oc settings?
I'm guessing OP is talking about how to set up internet connection on OS like hiveOS or Minerstat OS, maybe he use wifi hotspot for mining only which will require installation of driver before OS can detect internet connection