I have had a search engine redirect virus for several weeks. My computer specs: I am running Windows XP Pro SP2 with an Intel Pentium M 2.13 GHz processor and 1.0 Gig of RAM My harddrive is 80 GB with 55.3 GB free Video Card is ATI Mobility Radeon X700 I started out by running Avira, which detected 6 or 7 trojan files. I then quarantined the files and restarted, then re-scanned. It would detect 6 or 7 more trojans, and I did the process over again 3 more times, then decided to stop. I then un-installed Avira and installed Comodo and scanned. It found 20 or so files, but I couldn't figure out how to get rid of them, so I proceeded to step 2. I completed one Clean in step 2, but I want to make sure I don't need to do something in step one before I do the rest. Am I doing this correctly? Also, when I have anti-virus software installed, does it interfere with the successive steps? Do I need to uninstall it? I am a new poster so let me know if I need to include more information/do something differently. Thanks a lot.