-My explorer keeps adding porn sites to my favorites and hijacking my homepage while keeping my explorer window open or closed.
-I ran these spyware removal programs: X-Cleaner, clean out my IE options, ran CWShredder v1.47, ran Adware 6.0 and then SpybotS&D 1.2.
YourAd-aware and CWShredder are both out-of-date. They are up to 6.18 and 1.50, respectively. I don't think that's the problem, though.
That having been said, there are no nasty processes running, it's all in the Registry. Delete the following keys:
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchURL = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://66.250.170.70/search.htm
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://66.250.170.70/search.htm
R1 - HKCU\Software\Microsoft\Internet Explorer,SearchAssistant = ,
R1 - HKCU\Software\Microsoft\Internet Explorer,CustomizeSearch = ,
O1 - Hosts: 66.250.170.70 verisign.com
*** This is likely where your redirection is coming from. ***
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - (no file)
O3 - Toolbar: (no name) - {B2847E28-5D7D-4DEB-8B67-05D28BCF79F5} - (no file)
These two are optional, but highly recommended:
O4 - HKLM\..\Run: [QuickTime Task] "f:\quicktime\qttask.exe" -atboottime
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
One last question, though: Why do you have both Intel and SiS utilities installed on your system? They are mutually exclusive. They probably don't conflict, but one or the other is redundant. Post your exact HP model number, we'll figure out what you have and get rid of what you don't need.