Help please! I think I've got a computer virus but it's not being picked up by AV

[private9]

Hi All,

Hoping for some help please!

A couple of days ago got a random message box pop up saying I had a worm/virus. Normally I don't click these (but have never had any on this computer, and it looked very authentic!)

So I clicked ok to whatever it said, and now internet explorer just keeps trying to connect to a heap of random anti-virus sites, and it does this continuously if I leave the computer going. I'm also getting constant windows style popups warning of infections, security risks and so on, and my computer is now running extremely slow.

3 icons for antivirus/malware/spyware cleaners have appeared on my desktop, and although I have tried deleting, they reinstall themselves within about 20 minutes of running.

I have also found that my windows task manager (ctrl, alt, del) has been disabled (says, disabled by your system administrator).

Obviously there's something not good going on, but I have run AVG and CA antivirus twice each, and neither has picked anything up.

I have disabled internet explorer (now using firefox) so at least when internet explorer opens, it can't actually connect to the websites it's trying to access.

Would really appreciate any advice anyone has to offer!

Thanks,

Justin.