While my Father was reading a newspaper site he opened an article for a piece of news , and it appears that a trojan entered with the page. Strangely for me , an antiviruswas downloaded and installed , and then activated itself automatically. Then the virus started working and it refuses to open the operating driver "C:\" normally by clicking it and it is offering my father every time the full Version as the trial version is the one working . And when my father tried to uninstall it from "C:\" when he succeeded in opening it , the filr did not contain a Uninstall file for it ("for sure as it is a virus") , And then trying to remove it from (Add or remove programs , he removed it but it wasn't gone!! . And Entering the "C:\" , trying to delete the file it did not , and trying to delete each file inside one at a time some was deleted and some refused to. And the computer is taken over by this thing and the name is "Antivirus" and is apearing as one. I hope somebody can help and Thanks.Asser Osama1 person needs an answerI do too

The quickest, most efficient, and Secure method for cleaning such infections is with a Linux-based Rescue CD. You'll need to download an ISO, burn it to a CD, configure the system to boot from the CD/DVD drive first, and then start the system with the CD so that the Hard Drive is not Active.If you choose to go this route, see - Kaspersky Rescue Disk 10The articles on that page will show you precisely what to do.Or, you could try booting the computer to Safe Mode and see if System Restore can successfully roll the system back to just before it became infected.If you're more comfortable doing that, see - How to restore Windows XP to a previous stateChoose a restore point that was created at least 2 days prior to the date the system became compromised.( If the system can not boot to Safe Mode, see if it can boot to Safe mode with a Command prompt )MowGreen Update Services - Consumer Security