Stop Ads By VPN Apps Thoroughly - Removal Method

What is  Ads By VPN Apps?

Recently many computer users complained that their computer have been infected with  Ads By VPN Apps:

For some time now I have been struggling with adware arrow-10x10.png infection that keeps coming back. Within a few minutes of going back on line I am getting pop ups and highlighted text. At the top of EVERY search there is stuff headed Ads By VPN Apps. Most of which is drivel Any advice gratefully received as I am at my wits end.