When I am using the browser a secondary browser page pops up behind the page I am on. I am about 99% sure I have been hijacked. I recently got a blue screen and my computer has been freezing up, etc. 
I read through the before you post and I am submitting the required information. Any help would be great appreciated.

I read through the before you post and I am submitting the required information. Any help would be great appreciated.