Combofix comes with a disclaimer from its author --- that it is an extremely powerful tool, which should not be run except under the supervision of a malware-removal expert. By running combofix, and other tools "haphazardly", it's possible you may have inflicted additional damage to your system Be advised that one-on-one Malware Analysis/Removal is no longer done at the Dell Forums.    
 Some time ago, my pc started to show some bad signs, like programs closing by themselves, sound stopping to work, slow internet and videos freezing,I use ESET Nod32 antivirus 4 and it didnt find anything, i also used CCleaner and nothing changed, so i decided to use Combofix, I don't know how to interpret the log, if someone could do it for me, i would like to know if it did find something and if so, what should i do.  Perhaps it's not a virus or spyware problem, so i need someone to analyze the log for me :) Here is the log:
Need help with log of ComboFix