Magyuu

...need some serious help to get rid o? Internet Security 2010 Virus?
My HP pc has got this virus last night and I need some serious help to get rid of it. The pop ups are really agressive and seems to be attacking every part of my computer. It has hijacked my web browser so I can't download any mal/spyware software to help me get rid of it. I removed some of the known registry keys suggested on varoius sites that I saw on my PC. My system restore facility is not there anymore and now I have a message "ntldr is compressed press ctrl alt del to reboot" but it's stuck in a loop and returns to the black screen with this same message. I can't even get to the windows screen anymore but I can get to the HP PC System Recovery screen. From memory when I bought the PC new, it was already loaded with XP so I do not have and recovery/installation CD...Any help will be greatly appreciated.