Antivirus System Pro how can I get rid of this?

How do I get rid of this?

Hello joleen.snyder,

Welcome to Geek Police, my name is Origin and I will be helping you today. Please keep the following in mind:

• If you do not get a reply from me or another helper within 2 days, please reply to your topic with the phrase BUMP
  
• If you have any cracked/pirated software in your computer delete them or we will not help you.
  
• Only follow advise from Geek Police Staff and not a regular member.
  
• Do NOT run any tool without Geek Police supervision as it could hinder your system useless.
  

Lets see if you can download HijackThis:

Please download the current version of HijackThis from HERE

• Double click and run the installer.
  
• It will install to C:\Program Files\Trend Micro\HijackThis\hijackthis.exe
  
• After installing, you should get the user agreement, press accept and Hijack This will run.
  
• Select Do a system scan and save a log file. This will open a notepad file of everything Hijack This found, copy and paste it back here.