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All around the world 90% of users are infected by computer viruses that are invisible to the average computer operator. Viruses are small executable programs which have the ability to change the behavior of an operating system or any application. Many viruses are found in the form of files for example: .EXE, .BAT. 60% of viruses have a destructive effect on your computer file system.
Many of the viruses can directly corrupt operating system files. And out of 90%, 70% of viruses are targeted to attack computers of the home user. There is malicious intent in this strategy as it targets many home users lack of programming knowledge and / or how a virus attacks their PC. Viruses are mainly written by the people to show their programming skills, cleverness and talent. Some people love to write viruses to have fun with their friends and neighbors: some people just make viruses for egotistical reasons.
Currently people are writing viruses for financial gain, (spyware). I would like to give you an example: there is a commonly known virus, if this virus comes to your PC it will decrypt your complete hard drive and it will not allow you to access your hard drive. Then this virus will ask you to send $ 25 by PayPal to fix this problem or encrypt your hard drive back.
To make your PC secure always visit legitimate websites and before accepting or clicking any link, make sure that link is not spam. Always use good antivirus software. Always check extension of files: for example it should not be: .exe extension. Because most of the viruses are made in: .exe extension (.exe stands for executable files). Do not accept any mail from strangers. Always scan your files before copying them down to your hard drive.
Along with a good antivirus program you can use the firewall software for your system to make your computer secure on the internet. Always use the functionality of your operating system, for example: if you are using Windows Vista do not disable UAC feature (UAC stands for user account control). This feature will always ask for your permission if any executable file is going to execute on your system or if you are making any changes in your operating system. This feature is very useful but most of the people disable it because they feel that this is a distraction and always pops up in between work. It is forgotten that this feature is added only for your security.
Now a question arises: If your system is infected with viruses how do you know that your system is infected with virus and how to identify it? I will give you some useful advice on how to find viruses in your computer. If your system is infected with viruses your system slows down / will show you error messages / some annoying pop-up will always appear on the screen / your system will be different or sometimes your system will not boot -up in 'normal' mode. The most efficient methods of exposing viruses are to check from taskmanager and from MSconfig utility: you can check your processes and services in your taskmanager if any unwanted applications or service are running.
At last, if you are not able to remove viruses from your computer or are tired, you can ask for help from a technical expert. There are many companies providing online computer repair and support service. They are working hard to make your PC secure and helping you to work on your PC freely without worrying about viruses. They have a lot of experience in troubleshooting and virus removal strategy and these technicians can easily find viruses which are hidden in your computer and remove them.
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