Not too sure if this is the place to post this but I just noticed recently that the Teredo tunneling adapter keeps turning itself on. It never turned on before prior to this so I'm not too sure why it's activated itself now. It happened after I used a VPN but I've used it before and it never activated itself.
I keep disabling it in devices manager but as soon as I reboot the computer, it re-installs itself. It says on the events for the adapter that nettun.inf reinstalls it every time it reboots. I had to run a command prompt as administrator to (hopefully) permanently disable it.
Is this just a windows bug or has my system been compromised by something?