helppppppppp somebody! keeps getting ad popups and a script error thingy that keeps popping up again and again!

im really getting sick of it !!
yes I have a popup blocker (what bloody use it is) also got windows defender and AVG, also tried programs to find and get rid, but nowts working
can anyone recommend a good spyware?
do I have to wipe it all and start again?
WHAT DO I DO BEFORE I SMASH THIS BLOODY THING UP!!
