nslookup runs automatically every day on my PC exactly at 18:00 / 6.00 PM. It's blank cmd window with 'nslookup' in the title which closes automatically after few seconds. Anyone knows why is this and can I disable it? Thanks.
There is a 'Nero Platinum 2016 Update' task set to 'At 18:00 every day'. I believe that's it. Thank You very much for your help, this was fast.