List of the best antivirus in world

What is an Antivirus?

An antivirus is a computer program designed to search, disable and remove viruses, Trojans, malware or worms from a computer system. Each antivirus program has its own features and some can remove only a particular kind of virus from a computer, while others are built to eliminate them all. Hence, you should be cautious while choosing which antivirus to install on your system and remember to make regular updates as at least 100 new viruses can be discovered each day.

How to know if your computer is infected?

Computers normally get infected very easily. The most common ways of getting viruses, Trojans and worms are:

• 1. from a software, program or file that you have recently downloaded
• 2. from a an infected removable drive that you have plugged into your PC
• 3. from pop ups from various websites
• 4. or simply from infected sharing folders on a network.

To know whether you computer has been infected or not, you should ensure that it has not:

• 1. been running too slowly lately
• 2. been displaying fatal error messages
• 3. prevented you from running or accessing some specific programs/files/programs.
• 4. automatically hidden or deleted some files/folders/programs from your system
• 5. renamed your programs/files/folders in an awkward way
• 6. allowed you to run your operating system properly
• 7. displayed weird symbols or signs while running your system
• 8. frozen or promptly interrupted any tasks
• 9. displayed infected files on your system while scanning your computer with an antivirus.

These are among the most common ways to know if your computer has been infected but the best method remains prevention. If you have a good antivirus installed, you will be warned each time a virus is trying to attack your system and if it should be either quarantined or removed.

Here’s a list of the most effective antivirus programs currently available online:

BitDefender

An antivirus / Antispyware that protects against phishing attacks.

Type: Commercial/Free

System Requirements:

• Windows 2000 with Service Pack 4
• Windows XP with Service Pack 2 (32/64 bit)
• Windows Vista (32/64 bit)

Download Link: http://www.bitdefender.com/site/Downloads/

Kaspersky

An antivirus / Antispyware that protects against worms and Trojans.

Type: Commercial/Free

System Requirements:

Microsoft Windows 2000 Professional (Service Pack 4 or higher), Microsoft Windows XP Home Edition (Service Pack 2 or Higher), Microsoft Windows XP Professional (Service Pack 2 or higher), Microsoft Windows XP Professional x64 Edition, Microsoft Windows Vista, Microsoft Windows Vista x64.

Hardware and Software Requirements:
50 MB free space on the hard disk, CD-ROM (for installation), Internet connection (for activation and updates), Microsoft Internet Explorer 5.5 or higher (for updating signatures and the program), Microsoft Windows Installer 2.0.

Download Link: http://en.softonic.com/s/kaspersky-7

ESET NOD32

Antivirus

Type: Commercial

System Requirements:

• Processors supported: 32-bit (x86) and 64-bit (x64) Intel®, AMD® or 100% compatible
• Operating Systems: Microsoft Windows 2000, Microsoft Windows XP (32 and 64-bit editions), Microsoft Windows Vista (32 and 64-bit editions)
• Memory: 33 - 38 MB on average
• Disk Space (download): 16MB
• Disk Space (installation): 78MB

Download Link: http://zelectronicz.com/p-17871-eset-nod32-antivirus-home-edition-v30.aspx

AVG Anti-Virus

Antivirus
Type: Commercial/ Free

System Requirements:

• CPU Intel Pentium, 300 MHz
• 30 MB free hard drive space
• 256 MB RAM
• MS Windows 2000
• MS Windows XP
• MS Windows XP Pro x64 Edition
• MS Windows Vista
• MS Windows Vista x64 Edition

Download Link: http://free.avg.com/


Next topic
Is it okay to run more than one antivirus program at the same time?

The most simple answer is, "No, it's not okay to run more than one antivirus program at the same time."

Technically, I've answered your question, but I suppose I'll give you some reasons why too! : ) All jokes aside though, this is a serious matter and this is something that's important for every computer user to know. Now, I thought we had done a tip on this in the past, but after searching and searching through our archives, I couldn't find a decent article on the subject. But, even if this is a duplicate, I feel it's important enough to go over again. So, if you already know about all this, this could be a good refresher for you or if you're not sure about it yet, please keep reading!

It makes sense that we, as computer users, assume that if we have more than one antivirus program on our computers, we will be better protected from outside threats. We all think that if one of them doesn't catch something, the other surely will. Well, this just isn't true. Using more than one program (or even multiple versions of the same one) will likely cause you some problems. Here are a couple of the biggest ones spelled out for you.

1.) You will use up too many resources on your computer. Doing this will more than likely slow your system down and it will truly affect your computer's performance.

2.) You could receive false virus alerts. Antivirus programs work by using an actual virus to detect another one on your computer. So, if you have more than one piece of software running at the same time, each program will think the other is a virus. The two programs will conflict in many ways, but this is one of the majors.

Now, as I'm sure you can already figure out, it's recommended that you only install one antivirus program on your PC. So, if you have two of them on your computer right now, you should uninstall one right away. Now, you might be wondering how you should pick which one to keep, right? Well, choose the one you're the most familiar with. For example, if you have Norton and McAfee on your computer, which one do you know the best? Which one is going to give you the protection you need, but also ease of use? Those are just a couple questions you should ask yourself before you decide.

Also, you might want to look into the expenses of each program you have. If one is going to be a little cheaper to upgrade, etc., you may want to go with that one. Keep in mind also that there are several free antivirus programs available today, so maybe that could be a deal breaker for you. Just weigh all your options and make sure you choose the program that is going to be the best for you and your computer.

If you already have two antivirus programs on your computer, you can uninstall one by going to Start, Control Panel, Add/Remove Programs. From there, just find the name of the one you want to get rid of and hit the Remove or Uninstall button. That will take care of the program and all of its components as well.

Now, if you still don't think you're going to be protected enough, just make sure you keep your virus definitions up to date and keep everything clean. Run your virus scans on a weekly basis as well. If you do all that, you'll be just fine with only one antivirus program. And believe me, your computer will thank you. No more conflicts, no more slow downs and no more trouble. The best is yet to come!