I use many programs including Norton, Spybot, Adware, System Mechanic, Registry cleaner and a few others. Make sure Norton is properly configured and do a daily scan with Adware. Increase your browsing security and avoid the popups. All exe files/ and email attachments should be scanned before opening. Spybot and Adware are free programs. On the bottom right of this page download free version of lavasoft. It's one of the best. You can update definitions as often as you wish. http://www.lavasoft.de/default.shtml.en This one is free too. Spybot search and destroy – Update on a regular basis. http://www.download.com/3000-2144-10122137.html Hope these sites help you. http://www.hackfix.org/ http://www.nohack.net/detection.htm

It is not unusual that various anti-virus programs are able to 'detect' infections (be they virus, trojan, worm, etc.), but may not be able to remove or 'heal' every infection. If the program is able to identify what the name of the infection is, I recommend searching the Internet for a 'removal tool' for that particular infection. In some cases, you may not find an automated tool, but may find instructions on how to manually remove the infection. This could involve deleting files, deleting registry entries, etc. In some cases, infections have done so much damage to Windows and your programs and files that removing the infection is not enough. In other words, serious damage may require a complete re-install of the operating system and all your programs and data.

Use avast. It has almost a 100% detection rate and i have never had a problem with it. http://www.avast.com/eng/avast_4_home.html

http://www.symantec.com/en/ca/index.jsp This site has 2 awesome scanners..I love it..It even has a widget that you can download for your desktop that will "speak" to you when your pc has some bad activity going on with it, at which point you can run a scan to fix and get rid of it..I highly recommend this site to anyone

I use avg, and i also have ad aware se personal,and i also use zone alarm secruity. they all work good for me and have not had a problem.I used advast but it gave me viruses and it took my friend a week to get them all out manually.

Google avg. You can download it for free, and all the geeks I know use it, and it works well for me.

Avoid anything by norton, avast and avira. Go for AVG, adaware, spybot and comodo personal firewall.

LIke i have said before, be careful of free downloads for anything, including virus killers. They themselves may be a virus in disguise. The Trojan is very clever. Once it has entered your computer, it takes over and destroys your system from top to bottom. I had over 800 hundred viruses. the Trojan eventually even took over the start button. I killed my computer by taking it way back in the woods and shooting it. it felt good to be finally the winner. The Trojan was dead, at least at my house. I started all over again with a new computer. This will happen to you, so expect it.

Although the most painful, "Format C:" is the best remedy.

In addition to what everybody else has said - if you KEEP getting viruses you should reconsider your surfing habits. Be very careful about any site that seems to offer any sort of service for free, especially porn sites and never open a file that you have downloaded or an e-mail attachment until you have checked it for viruses. Whatever anti-virus and anti-spyware software you have, keep their signature files up to date.

Trojans and variants of it have known signatures so all the known antivirus software and threat protection software can handle it. Kaspersky, Bitdefender, Trend Micro, McAfee, AVG, Webroot, and Avast would be able to provide basic protection for you and your system if you choose to get their free-to-use or free-to-try version. As the name of the virus suggests, trojans’ all about deception. I would assume that you have been tricked, duped, deceived either through social engineering, phishing emails, sniffing scams, or you may have installed a free item [a game, an ebook, a text file, an office document, or a collection of enticing images]. A trojan may be hidden in the code of any of these items. A trojan is a malicious code hidden in a file or item that looks legitimate but is not. In actuality, it will cause you to lose control of your device. Any threat protection software can detect and protect you from this threat. But what needs to be addressed is the open door in which the threat is infiltrating your system. This must be dealt with appropriately. Why? If you work for a company and a trojan hit your system and this time it caused a Distributed Denial of Service or DDoS. If that infects your company’s servers, it will shut down your company’s services especially if you provide IoT-type services. Of course, the trojan can be easily dealt with BUT the repercussions will be disastrous. Once their service stops, customers would ask if their financial information or any critical information was breached. Refunds might begin to happen. Lawsuits may follow. Such financial loss might lead to the bankruptcy of the company. Small businesses would have a difficult time recovering from that. Similar to the proverbial Trojan horse, an impenetrable wall is useless if you let a small enemy within those secure walls.

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do a clean install and keep the firewall up and not let any Trojans in. Keep your files on another partition, scan them find and delete all trojans.