Yes you can clear out your prefetch folder
let's try and clean up anything that maybe lingering
Click here To download Adaware SE 1.05 And set up Adaware per instructions there
Download and install
Spybot S&D. Run Spybot and click on the 'Search for Updates' button. Install any updates that are available. Next click on the 'Check for Problems' button. Let it run the scan. If it finds something, check all those in RED and hit the
Fix Selected Problems button. Exit Spybot. If you keep getting the DSO Exploit entries, even after you updated Windows and fixed them, then download the
Spybot DSO Exploit Fix and install it over the current Spybot installation.
reboot and post another HJT log and let me know how your computer is running
Lobos