link to get HijackThis.
Save it to your desktop and then double-click to run it.
It will install the program in c:\program files\HijackThis.
Browse to that location with windows explorer, and double click on the HijackThis.exe program to run. Choose the 'Do a system scan and save a logfile'
That will allow you to save the log to the desktop (or some other place) and leave open a notepad file with the HijackThis log in it.
Now post your HijackThis log into this topic.