ComboFix usage, Questions, Help? - Look here
Hello itster -
The page above is where I would like you to start - The basics are listed there for you.
Please note that you may think that you are doing the correct thing, but you are cutting down a tree just because you wish for a single toothpick.
By this I just mean, although you think your final intentions are good, you are going about it the wrong way.
First install a Decent Antivirus program (even a Free one), next install a Decent Antimalware scanner like Free Malwarebytes Anti-Malware, keep both of these fully Updated, and there is usually no need for Heavy Duty (removal only) programs like ComboFix.
The program has limited usage, and unless you have been trained to read the log output, you are wasting your time and efforts.
I do not wish to go beyond this, but Please read the Full Directions
on how the program can go beyond just Malware Removal (on a clean computer it has no use), and read the details of how the program can make alterations to a computer.
Thank You -