I picked up the Delta Search virus on a Win 7 laptop, IE 8. I used SpyHunter and RegHunter to remove the large number of files that were Delta Search related. But when I rerun the SpyHunter\RegHunter scans, there is a registry key for "delta-search.com" that periodically reappears - "HKCU\software\Microsoft\internet explorer\lowregistry\domstorage\delta-search.com"and InternetExplorer is still corrupted in certain ways. Even though the home page is now the default MSN home page, whenever I click on a new tab, DeltaSearch appears. Also, whenever IE closes, there seems to be an eventual error prompt about IE not closing properly.
What can be done to remove these DeltaSearch traces, and prevent the return of this DeltaSearch registry key?