Hello. The tools you are using are very good but not quite good enough for this type of problem. There are two things you can try. Open Internet Explorer and go to INTERNET OPTIONS from your Tools pull-down menu. Once there, go to the ADVANCED tab. Click on RESET INTERNET EXPLORER SETTINGS. This may take care of the home page issue but there is still the underlying issue of the hijacker in the system. For that, you should run two programs to start with. The first one is called TDSS KILLER. You can download it for free at http://www.bleepingcomputer.com/download/tdsskiller/ and download the EXE version. Once installed, it will only take about 30 to 60 seconds to run. If that program doesn't find anything, you'll want to try a program called Combofix. Combofix is a very powerful program and is wonderful at identifying and removing these types of issues. You can find that program at http://www.bleepingcomputer.com/download/combofix/ To run this program, disable ALL antivirus, antispyware, antimalware programs. If you have to, boot into SAFE MODE and run it from there but be sure to disable those programs. It will run with them enabled but not quite as effectively.
My name is Mike. I own Byte Size Computer Repair and I do have a website at www.bscr.biz. I just wanted to let you know that so you don't think I'm some fly-by-night hacker trying to get you to run things that will compromise your system. 90% of my business is virus and malware removal. If these programs don't solve your problem, then you have some deeper issues that will require some further attention. Good luck and happy new year!
Mike
Byte Size Computer Repair