PC Viruses

Remove potential viruses from computer

Viruses are programs which have the ability to replicate itself and copy into other programs, documents or boot sectors. The three main kinds of viruses are file infectors, system or boot record infectors and macro viruses. The best way to keep viruses at bay and keep your computer healthy and running is by installing good antivirus program on your PC.

A computer virus is a program or a programming code which has been designed to copy itself into other programs, documents or boot sectors. Computer viruses’ main intention is to cause damage and play havoc with your computer.

Computer viruses start executing from the moment they enter a computer’s memory and instructs the host program to replicate and copy the viral code into other programs and files which are already stored in the computer. In this way the virus starts to corrupt the programs and the infection is spread further when it is transferred to other computers through various mediums like computer networks, storage devices etc.

The best way to detect and remove viruses from a computer is by installing good antivirus software on your computer. However, one should remember to update the antivirus software regularly because viruses mutate and evolve consistently and new threats crop up regularly.

Viruses are mostly transmitted through e-mail attachments, downloaded files, or a CD or diskette. These are the immediate sources of viruses.

By and large, there are three main categories of viruses:

File infectors

These viruses attach themselves to program files, e.g. .COM or .EXE files. It also affects programs where execution is undertaken such as MNU and .OVL files. The virus loads along with the program.

System or boot-record infectors

These viruses attach themselves to Master Boot Record or DOS boot sectors on hard disks. One should have a bootable floppy in order to do away with this complication.

Macro viruses

Macro viruses are the most common viruses and they do little damage. They basically infect the Microsoft Word application in Microsoft Office and insert words and phrases by it.

The best way to stay clear of computer viruses is by installing good antivirus software for your computer. In order to prevent virus infection, one has to be well aware of the origin of each program file or the files you load into your PC. Be cautious when you open e-mail programs and screen the attachments with antivirus software before you open them. Viruses and their problems can be easily sorted and kept at bay if these precautions are followed.

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