1. I can't install CWShredder- I get the message C:\Windows\Temporary Internet File\Contents.IE5\OHAV49EN\CWShredder.exe is not a valid Win32 application.
2. I can't install Windows Service Pack 1 KB886903. I can download it, but installation fails. I believe the error message was OX643.
3. I did do the scans with ad-aware SE, Spybot S&D. I also have Norton AV on my computer and get regular updates, but NAV doesn't even "see" Winfixer.
4. I downloaded Ewido, but now am not sure if I should run it. Based on your preparation instructions, two anti-virus programs is not a good idea.
Please tell me what direction I should head from here..and MANY THANKS!