LOL. I've never seen 700k logfile of quarantined cookies before.

Let's run one more online scan and I think you'll be good to go.
Please perform an
BitDefender Online Scan using Internet Explorer. Once finished, click on the
Details button to view the results. To the upper right of the results you will see an option saying "
Click here to export the scan results". Please do so and save it to your desktop.
Post the results of the scan with your next post along with one more HijackThis log after it's finished. Also let me know how your computer is behaving now.