New
#11
Honestly, you could spend years of your life investigating "mysterious" activity performed by Windows. I really wouldn't look too far into this. It's not worth spending your time and effort worrying about. It could be BITS. It could be normal network ARP requests and responses. It could be antivirus checking for updates. It could be a bunch of completely normal things.
If your computer starts freezing up or you start seeing activity happening on the screen, then you can start to get concerned.