Try Stinger, linked in my signature, last link.
If that is no good run Hijackthis and post its log on one of the forums suggested lower down that same link for expert advice.
You could fiirst try System restore to see if you can go back to before it all started.
If successful make sure you update everything.
i cannot do system restore because when i tried it. it said that i have not set up the system restore up. so that is not a possible option or else i would have done it
Then try the 1st and 2nd suggestions. Hopefully they will help.