Last week, I inadvertently (and stupidly!) clicked on an unzipped executable file I had downloaded that immediately caused me problems with my system - Windows XP Home SP2. The problems would arise whenever I opened any browser. Popups would occur, system would slow down considerably, sometimes a 'Buffer Overrun' error dialogue would appear and generally making surfing a nightmare.
I followed your tutorial about running ComboFix and, lo and behold, seems to have remedied the situation. I am now following the advice given in the tutorial in submitting (as an attachment) the HijackThis log taken immediately after running ComboFix. I also have the ComboFix log - also taken immediately after running ComboFix - should you wish to examine this.to ensure that nothing nasty has been left behind.
Your assistance will be most gratefully received.
David (London, UK)