Ethernet Adapter times 79! Way too many!

This computer had an incredible amount of Ethernet Adapters listed! Something I've never seen before.. 

As being confronted with IT issues almost daily there are sometimes cases you haven´t seen in years or you aren´t sure if you have seen them at all! Recently I was asked to check a Danish Windows 10 laptop because despite having WiFi connection the Internet browser couldn´t open any more sites and video streams stopped working.

I checked the network adapters and was quite surprised! There were Ethernet Adapter numbered until 79! And sometimes even numbers were missing and the user had no idea about that! Then I went to the Device Manager to check and "TAP-Win32 Adapter Adapter OAS #22" was one of the many examples I found there. And the list almost did not stop flashing all the time...

Anyway, I had to delete them all manually. All at once didn´t work. Once that was done the Internet connection worked fine again. Wonder why^^. 

I suggest a proper virus and malware scan afterwards just to be sure there`s nothing going on anything. A bit online checks mentioned it could might be through some VPN software or even an Office KMS activation...