try running the microsoft malicious tool at

lava soft adaware is free
antivir is also a free linux port that is decent.
Spybot Search and destroy from safer-networking.

If none of this works, run hijjack this and post the log
If none of this helps,

use malwarebytes antimalware just use it as as “on demand” scanner so u wont have to pay for it

u can use a few too;s to prevent these types of things from getting in

they will take up no resources just block known malicious sites etc

If you have tried everything that is mentioned in the article below
and if the pop-ups still show up, then use a third party pop-up blocker. I haven’t tried this myself but I happy with Firefox.