Virus on my laptop...

Its really annoying =_=
Its bin going on for awhile

Tried updating my internet security, checking for unwanted downloads, trying to block the links, etc...
but its as if the virus is invisible, invisible enough that my internet security 
can't even detect it 

I keep getting random pop ups,adds, other search engines that the virus
keeps wanting me to use, it even sometimes freezes the internet until
I agree to some sort of contract (which you should NEVER click!)

In short, really hard virus to get rid of