Download OTC by OldTimer and save to your Desktop.
Connect to the Internet and double-click on OTC.exe to start the program.
Click on the green CleanUp! button.
If you get a warning from your firewall or other security programs regarding OTC attempting to contact the Internet, please allow the connection.
When it has finished, OTC will ask you to reboot so it can remove itself.
-- Doing this will remove any specialized tools downloaded and used. If OTC does not delete itself, then delete the file manually when done.
-- Any leftover folders/files related to ComboFix which OTC did not remove can be deleted manually (right-click on it and choose delete).