Cannot remove personal anti virus

Hi,

I'm new to this forum and have been trawling the net for my particular problem and this seems like best site. I have a laptop running XP Media Center SP2 that got infected by personal anti virus. My immediate reaction was to use Malware bytes Anti-Malware like I have used several times before. However I ran into difficulties. At first, I couldn't install it, so I renamed the .exe and it installed. Now. however it won't launch,I have renamed all references to mbam but it just will not launch for me. I have tried to install Combofix, spybot search and destroy, spyware doctor, all to no avail. I also tried to run hijack this and this failed. The only thing I installed successfully was avg. I also looked at the manual approach of removing pav and tried to remove as much as I could, but it's still hanging around.

Anyone any advice on this please, much appreciated.

Hello noviceman,

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.
  

• Please download DDS by sUBs to your Desktop (Important!!) from one of these locations:
  Link 1
  Link 2
  
• Double click DDS.scr to run.
  
• When complete, two logs will open. Save both of the report to your Desktop.
  
• Copy and paste DDS.txt back here, I don't need to see attach.txt just yet.