p.adrta.com

Question

how to remove this

Answer 1

Any browser extensions that may need to be reset/disabled?

Try one or more of the following scanners - - -

AdwCleaner: https://toolslib.net/downloads/viewdownload/1-adwcleaner/

Emsisoft Emergency Kit: 

http://blog.emsisoft.com/2015/06/09/how-to-find-and-clean-malware-infections-with-emsisoft-emergency-kit/

Malwarebytes Free (14 day free trial): https://www.malwarebytes.com/mwb-download/

you may need to reset your browsers.

https://malwaretips.com/blogs/reset-internet-explorer-settings/

https://malwaretips.com/blogs/reset-chrome-settings/

https://malwaretips.com/blogs/reset-firefox-settings/

http://www.howtogeek.com/237527/how-to-reset-microsoft-edge-in-windows-10/

Regards...

http://blog.emsisoft.com/2015/01/27/top-10-ways-pups-sneak-onto-your-computer-and-how-to-avoid-them/