Ok, I had the antivirus pro virus and I used advice from this forum to remove it. I have Windows XP. I have downloaded and scanned with malwarebytes anti-malware. I just tried to download and install hijack this and couldnt get it to work. The major problem I still have is that I cannot access my add/remove hardware and anything with .exe. The error message that pops up is "C:\WINDOWS\system32\rundll32.exe - Application not found". Please help!!