Board Thread:Questions and Answers/@comment-1883159-20170211023829/@comment-183.78.125.136-20170211074041

Your browser is probably infected with adware. I'm no techical expert but I had this happened before.

Try to find in your apps' list of the apps that shouldn't be there and delete it. And then run CCleaner to delete its registry from your computer.

If it's still there, I'm sorry I can't help much.