Here I have tried to make a list of some of the best software for protection most of which are free
1. Avast! Free Antivirus:
Free antivirus with anti-spyware protection for Windows 7, Vista, or XP. Antivirus package is available free for noncommercial home users. Download
2. AVG Antivirus Free Edition:
Free antivirus and anti-spyware security software for Windows.Download
3. Avira Free Version:
Protects your computer against dangerous viruses, worms, Trojans. Download
4. Kaspersky Antivirus: Kaspersky Anti-Virus provides real-time protection from the latest malware and viruses. It works behind the scenes with intelligent scanning and small, frequent updates, while proactively protecting you from known and emerging Internet threats. Trial Versions Download
1. Malwarebytes: Malwarebytes powerful technology to detect and remove all traces of malware including worms, trojans, rootkits, rogues, dialers, spyware and more.Download
2.IObit Malware: IObit Malware Fighter is an advanced malware & spyware removal utility that detects, removes the deepest infections, and protects your PC from various potential spyware, adware, trojans, keyloggers, bots, worms, and hijackers. Download
3. ThreatFire: Spyware removal tool with real-time antispyware protection. Lightweight and memory sparing.Download
1. ZoneAlarm Internet Security : Analyzes downloads using patent-pending technology and warns you if a download is malicious - stopping it from infecting your PC. Monitors programs for suspicious behavior spotting and stopping new attacks that bypass traditional anti-virus protection.Download
2. Ashampoo FireWall FREE : Monitors all your computer's network activity and protects you against both incoming and outgoing connections.Get full protection in seconds with Easy Mode.Download
3. PC Tools Internet Security: PC Tools Internet Security delivers powerfully simple protection against all types of online threats.
Download
4. Online ArmorProtect yourself : Online Armor's range of firewall products are designed to fit every need. The free version provides great security for those on a tight budget.Download
5.Kaspersky Internet Security : Kaspersky Internet Security 2012 delivers premium protection from viruses, Trojans, spam, hackers, and more. Trial Versions Download
1. Avast! Free Antivirus:
Free antivirus with anti-spyware protection for Windows 7, Vista, or XP. Antivirus package is available free for noncommercial home users. Download
2. AVG Antivirus Free Edition:
Free antivirus and anti-spyware security software for Windows.Download
3. Avira Free Version:
Protects your computer against dangerous viruses, worms, Trojans. Download
4. Kaspersky Antivirus: Kaspersky Anti-Virus provides real-time protection from the latest malware and viruses. It works behind the scenes with intelligent scanning and small, frequent updates, while proactively protecting you from known and emerging Internet threats. Trial Versions Download
1. Malwarebytes: Malwarebytes powerful technology to detect and remove all traces of malware including worms, trojans, rootkits, rogues, dialers, spyware and more.Download
2.IObit Malware: IObit Malware Fighter is an advanced malware & spyware removal utility that detects, removes the deepest infections, and protects your PC from various potential spyware, adware, trojans, keyloggers, bots, worms, and hijackers. Download
3. ThreatFire: Spyware removal tool with real-time antispyware protection. Lightweight and memory sparing.Download
1. ZoneAlarm Internet Security : Analyzes downloads using patent-pending technology and warns you if a download is malicious - stopping it from infecting your PC. Monitors programs for suspicious behavior spotting and stopping new attacks that bypass traditional anti-virus protection.Download
2. Ashampoo FireWall FREE : Monitors all your computer's network activity and protects you against both incoming and outgoing connections.Get full protection in seconds with Easy Mode.Download
3. PC Tools Internet Security: PC Tools Internet Security delivers powerfully simple protection against all types of online threats.
Download
4. Online ArmorProtect yourself : Online Armor's range of firewall products are designed to fit every need. The free version provides great security for those on a tight budget.Download
5.Kaspersky Internet Security : Kaspersky Internet Security 2012 delivers premium protection from viruses, Trojans, spam, hackers, and more. Trial Versions Download