Download ComboFix Click on the Save button and then when it asks you where to save it, make sure you save it directly to your Windows Desktop
Do NOT open any unnecessary programs at this time. If you have IM programs which open automatically when booting, please close them completely. Make sure all browsers are closed completely.

Double-click on the ComboFix icon found on your desktop. Please note, that once you start ComboFix you should not click anywhere on the ComboFix window as it can cause the program to stall. In fact, when ComboFix is running, do not touch your computer at all and just take a break as it may take a while for it to complete.
When you double click this combofix icon you may receive a warning note asking if you are sure you want to run the program. This is because combofix doesn't have a digital signature. This is perfectly normal and safe and you can click on the Run button to continue.
Combofix will then show a screen stating it is preparing to run, ending with a disclaimer screen. You must accept this disclaimer by pressing "1". Then ComboFix will create a System Restore point so that if any problems occur while using the program you can restore back to your previous configuration. When ComboFix has finished creating the restore point, it will then backup your Windows Registry.
ComboFix will now start scanning your computer for known infections. This procedure can take some time, so please be patient.
While the program is scanning your computer, it will change your clock format, so do not be concerned when you see this happen. When ComboFix is finished it will restore your clock settings to what they were previously. You will also see the text in the ComboFix window being updated as it goes through the various stages of its scan.
When ComboFix has finished running, you will see a screen stating that it is preparing the log report
This can take a while, so please be patient. If you see your Windows desktop disappear, do not worry. This is normal and ComboFix will restore your desktop before it is finished. Eventually you will see a new screen that states the program is almost finished and telling you the programs log file, or report, will be located at C:\ComboFix.txt.
When ComboFix has finished, it will automatically close the program and change your clock back to its original format. It will then display the log file automatically. Save this log to the desktop so that you can find it easily.
Post back here with a copy/paste of that log.