ANTI VIRUS DOWNLOAD

AVG Antivirus Pro 8.0.138
* Easy to download, install and use * Protection against all Internet threats * Real-time security while you surf and chat online * Top-quality protection that does not slow your system down * Free support and service around the clock and across the globe * Compatible with Windows Vista and Windows XPDownload
McAfee Anti-Spyware Enterprise 8.0
On-access scanning Detect and block spyware before it installs and spreads; scan processes and files running in memory to neutralize them before they take root; removing one process in memory is faster and than trying to remove dozens of installed applications Stop spyware and viruses efficiently You can stop both spyware and viruses by integrating AntiSpyware Enterprise with McAfee® VirusScan® Enterprise; they share a single scanning engine to reduce system overhead and increase system performance Scan for spyware in the registry and files It blocks annoying spyware reinstallation because AntiSpyware scans for both registry entries and files; by doing so, it removes top security threats and adware popups Download
Kaspersky Virus Removal Tool 7.0.0.223 - 08.08.200
Another virus scanner and detection software from Kaspersky. The Kaspersky Virus Removal Tool application was designed to be another virus scanner and detection software from Kaspersky. The produst will scan the specified locations for any virus threats and remove them or send to Quarantine folder. Download 1 Download 2
McAfee Anti-Spyware Enterprise 8.0
On-access scanning Detect and block spyware before it installs and spreads; scan processes and files running in memory to neutralize them before they take root; removing one process in memory is faster and than trying to remove dozens of installed applications Stop spyware and viruses efficiently You can stop both spyware and viruses by integrating AntiSpyware Enterprise with McAfee® VirusScan® Enterprise; they share a single scanning engine to reduce system overhead and increase system performance Scan for spyware in the registry and files It blocks annoying spyware reinstallation because AntiSpyware scans for both registry entries and files; by doing so, it removes top security threats and adware popups Download
ESET NOD32 AntiVirus v 3.0.621
Comprehensive Protection, Minimal Performance Impact, Fastest Scanning, Easy to Manage, Proactive Real-Time Detection Download server patch
Norton Antivirus 2008 v15.0.0.58 ISO
Features- Improved performance delivers faster scans NEW- One click access to expert support NEW- Works quietly in the background. NEW- Network mapping provides a view of your home network. NEW- Detects and removes spyware and viruses- Blocks spyware and worms automatically- Antivirus protection for email and instant messaging- Prevents virus-infected emails from spreading- Rootkit detection finds and removes hidden threats- Includes protection updates and new product features as available throughout the renewable service period part 1 Download1 Part 2 Downlod 2 Part 3 Download

Windows Update

1. Windows Update - Check Windows Update and regularly. Configure automatic updates via the control panel click on the Automatic Updates tab in the System control panel and choose the appropriate options. We recommend choosing the last option: "Automatically download the updates, and install them on the schedule I specify (ie. Every Day, 9:00AM)".
2. Anti-Virus Software - Buy anti-virus software and keep it up to date. If you're not willing to pay, try Grisoft AVG Free Edition (www.grisoft.com). Though, Norton's Anti-virus isn't the top selling software in the world without reason. Use Live Update to ensure your computer is safe
3. Internet Dangers - Be skeptical of things on the Internet. When browsing the web don't accept any installations without knowing it is necessary.
4. Firewall Software - Install a personal firewall. Free firewall's available now are Comodo (www.personalfirewall.comodo.com), and Zone Alarm (www.zonelabs.com) offer free versions. Or if you chose not to use a third party firewall, turn on Microsoft Windows XP built in firewall that is part of Windows XP SP2
5. Spy-ware Software UPDATE: Spyware problems are slowly disappearing as Microsoft has improved Windows so spyware it not so easily loaded, especially if you are running Vista with UAC On or Windows SP2.. In addition many anti-virus products include a level of spyware protection now. If you want to ensure your spyware FREE, chose SpyBot Search & Destroy, and Ad-Aware to check your system.
6. Passwords - Use strong passwords and change them periodically. Passwords should have at least seven characters; use letters and numbers and have at least one symbol
7. Disable Windows Pop-Ups - Block pop-up spam messages in Windows XP, 2000, or NT by disabling the Windows Messenger service (this is unrelated to the instant messaging program).
8. Wireless Security - If you have a wireless network, turn on the security features: Use MAC filtering, turn off SSID broadcast, and even use WEP with the biggest key you can get. Use the strongest possible security, instead of WEP use WPA2.
9. Security Groups - Join a e-mail security list or newsgroup. You can learn about emerging threats quickly and can take proper precautions

COMPUTER SECURITY

COMPUTER SECURITY
Computer security is a branch of technology known as information security as applied to computers. The objective of computer security varies and can include protection of information from theft or corruption, or the preservation of availability, as defined in the security policy. Computer security imposes requirements on computers that are different from most system requirements because they often take the form of constraints on what computers are not supposed to do. This makes computer security particularly challenging because we find it hard enough just to make computer programs do everything they are designed to do correctly. Furthermore, negative requirements are deceptively complicated to satisfy and require exhaustive testing to verify, which is impractical for most computer programs. Computer security provides a technical strategy to convert negative requirements to positive enforceable rules. For this reason, computer security is often more technical and mathematical than some computer science fields.
Network security
consists of the provisions made in an underlying computer network infrastructure, policies adopted by the network administrator to protect the network and the network-accessible resources from unauthorized access and the effectiveness (or lack) of these measures combined together. Network security starts from authenticating any user, most likely an username and a password. Once authenticated, a stateful firewall enforces access policies such as what services are allowed to be accessed by the network users.[1] Though effective to prevent unauthorized access, this component fails to check potentially harmful contents such as computer worms being transmitted over the network. An intrusion prevention system (IPS)[2] helps detect and prevent such malware. IPS also monitors for suspicious network traffic for contents, volume and anomalies to protect the network from attacks such as denial of service. Communication between two hosts using the network could be encrypted to maintain privacy. Individual events occurring on the network could be tracked for audit purposes and for a later high level analysis