I had the same issue as the person above. Pup Startnow toolbar was never on Internet Tools Manage or any other place you can add/delete a toolbar. I looked everywhere.
I also had that Pup.StartNow Toolbar CONSTANTLY come up on my SuperAntispyware and although SuperAntiSpyware supposedly deleted it, it came back.
I got rid of Pup StartNow Toolbar by running Malwarebytes Anti-malware. It was free.
Then I ran CCcleaner (Free) and restarted my computer and ran SuperAntispyware again and this time NO Pup.StartNow Toolbar came up.