I am trying to help my husband clean off his computer. He was downloading the free trial of World of Warcraft, and now his system in infected with all kinds of malware and spyware.He was running an outdated version of McAfee, and his infection is so bad that he couldn't even download any software to help him clean his system. He has a dell dimension 8400 running XP professional, and he uses Mozilla Firefox as his browser. I downloaded the utilities on my laptop and burned them to a CD so he could install them on his system to use them. He installed avast, and it found about a gazillion infections. Everything was quarantined in the chest. Then he installed and ran ATF cleaner, and removed all the temp files. Then he installed Malwarebytes, but it would not run at all. I downloaded it from a different site, and he tried again, but it still would not run. He installed Super Anti-Spyware Plus, but it would not run either. Now when he restarts, he gets a message that says: error loading C:\WINDOWS\xccdf16_090131a.dll when he clicks OK, windows finishes startup. When he tries to go online, his home page loads, but he cannot navigate away from that page. Please help. What can we do? Should he just toss in the towel and take the tower in someplace to have it wiped clean and the system reinstalled? UPDATE: Now he gets nothing but a black screen at startup.