How do you get rid of Blank Page pop up?

It appears you may have adware on your system. What you want to do is run a program called 'Adwcleaner'. This software is currently #1 most downloaded file on bleepingcomputers and it is an Excellent piece of software to get rid of adware.

If you are still getting blank popup pages, try running a program like malwarebytes, or hitman pro, or even both if you want to be completely rid of any sort of malicious software on your computer.