use windows defender
First get Hijack this and run it
Second download Spybot, update it and use the immunize button. After that let it run in advanced mode so you can clear everything.
If you are on Vista you will need to run Spybot as an Administrator. After installing, right click on the program or shortcut, you will see, about the third command down, “Run as Administrator”. Run it from there doing the same things as above.
Turn off your internet connection.
Next, download F-prot, update. Turn off your computer and then run F-prot.
Turn off your internet connection.
Once F-prot completes, reboot.
Star in safe mode, if you don’t know what that is, then boot as you normally do.
Turn off the internet to your computer again and Open Spybot(as Administrator) with not window or browsers open, Immunize again. Then run Spybot in advanced mode.
Run F-prot at the same time to save time.
problem should resolve. If it doesn’t go to the board at Safer-Networking and look around. You can probably use the search function to find others who have had similar problems and see how they resolved.
Good luck
Sorry, I meant for you to download ComboFix.exe. Run that not Hijack this.
All the other instructions are fine.