I keep getting redirected?

i keep getting redirected to fake antivirus sites. ive scanned with avg antispyware but everytime i scan theres always a massive list of tracking cookies and irght after one scan, theres another big list and spybot detects nothoig adaware nothing

I keep getting redirected?norton 360

Use HijackThis and remove all browser helper objects (BHOs)

I keep getting redirected?photoshop

These ads are just to intice you to buy their products. I use a free softward from lavashoft? ad adware and it takes care of the cookies and pesty ads that get on to my hard drive. its free to download but of course they would like you to buy one of their services. so far i just run the free ad adware software and i turn of the screen savers as these just slow down your computer.
I would suggest the best option is to completely re-install your OS (probably Windows). Even though it is tedius and time consuming, it will fix all your problems. Make sure to back up any important files that you know aren't infected before doing it though.