Archive for : April, 2015

Importance of Antivirus for the computer

PC with virus

PC with virus



Today we shall look at why having antivirus for the computer is an essential piece of software to install into your computer. The topic discussed today will be focused on Windows operating system based computers though the logic extends across to Mac based computers as well.

Almost every computer used in the modern day for home or office is connected to the Internet. This is especially when everyone is hooked onto social media and using the internet to search for practically everything. It is almost unimaginable for a computer not to be connected to the internet. Since almost everything can be downloaded, it is also very easy for any computer which is connected to the internet to be infected with virus without the user even taking notice.

Viruses or malware can easily be embedded in the free software downloaded and installed when you least notice it. It can also be installed when you are trying to stream free videos over the internet or even the harmless click on the Ad banner found on the random website. In other words, virus cases strikes when you least expect it.

Certain viruses infect the system just by clicking the email link through spam emails.

Sometimes, even the most careful user gets it through one careless click in the PC.


Let’s look at some of the common questions that surrounds antivirus.


What does antivirus actually do? Does it slows down my PC?

We hear this a lot. That installing antivirus slows down the computer. In a way, it is true that antivirus running in the background does use a certain amount of ram and processes. But modern computer system have been built with ram that should be able to handle antivirus running at the background , protecting the system. So unless your computer is running very low on resources, it is still recommended to install some form of antivirus program into the computer. With some careful selection, it is still possible to find a antivirus that feels light on the system.


How does virus spread and what is the impact?

The behavior of malware or virus is evolving everyday as the hackers seek new ways and means to break the computer system. Generally, malware or virus will spread copies of themselves once they manage to get into the system. It can even go into removable flash drives and goes into another system when plugged into another PC.

They go by many names and types, but the end result is the same.

They harm the PC system by slowing down the system, causing operating system to crash, spreading virus by sending out bogus mails, using internet to spread the virus out to other computers in the network. Some hijack browsers to bring users to designated websites so that every click will earn the hacker money from sponsors. In certain cases, identity and passwords gets stolen by the bots which have been planted into the system, allowing hackers to steal the bank details off computers.

There have also been cases where the hacker software encrypt your computer data and demand money to be paid to them before your data in your computer gets released back to you. Sometimes, you don’t even get your data back, even after you made payment to these people.

The horror stories go on every day with these hackers and virus creators coming up with new ways to break into the ever increasing numbers of computers connected to the internet every day.



Free vs paid antivirus. What’s the difference?

The obvious answer lies in features and protection.

Antivirus companies spend resources updating virus definitions to prevent computers from being hacked and infected, so they have to earn a living. So for antivirus companies that offer free versions of their software, they always have a paid version that covers more areas.

Free versions of the antivirus always come with pop up ads that urges the users to upgrade to their paid version.

For those of you who are not ready to invest in paid version of the antivirus, the least you can do is to at least install a basic version into your system. Word of caution though, certain virus or malware also advertise or install themselves into your computer and claims to be antivirus too. So you got be careful there. Do a bit of research and install only the popular and legitimate antivirus into your system.

Seriously, if you are doing a lot of online transaction and work on your computer, installed a paid version of antivirus is recommended.

Also paid versions usually comes with more features that protects browsing security, firewall which prevents network intrusion, thus giving the computer overall security than free versions which only protects certain aspects of the system.



Is my PC down with virus? Symptoms to watch out

Some symptoms of virus infection as guideline:

-Sudden slowness in daily running of computer system

-Internet browser being hijacked with ad pop up

-Internet browser being diverted to other websites

-internet browser being shown with hyper-links that divert you to paid sponsored sites

-files on computers being changed to another icon or shortcuts

-feedback of you sending bogus emails to everyone in your contact list

-some pop up telling you that your computer has been infected by virus

-operating system crashed upon booting up

These are just some of the many symptoms that indicates that the computer system has been infected and should be cleaned up to prevent further damage to your computer system.



I have antivirus, why is my PC still infected?

Sometimes, it is the user of the computer system that permits the malware to be installed into the computer. Usually, the antivirus software will ask the user if they would like the software to be installed and if the user clicks “yes” without understanding the implication, the end result is that the system will still be infected with the software you have just given your permission. So while the antivirus is in place, sometime the user also have to take time to read through and understand what is being installed into your computer.

Some other times is that even antivirus companies need time to catch up on the latest virus and to update their definitions. So at times, certain antivirus may seemed more effective than the others.


So finally, for this article, we just wished to bring across the point that antivirus for the computer system has become an essential part of the software in todays’s environment. The fact is that malware, viruses, spyware etc is very common in today’s internet environment.

Would like to urge everyone to take note and protect your computer and your precious data by installing some form of antivirus software.