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When your system is running really slow, your anti virus will not work or programs are getting errors a lot.

When your computers slackens down,when many windows start poping up and when a program takes a long time to open.

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โˆ™ 2009-12-07 17:34:08
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Q: What are the main symptoms of computer virus infection?
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Unti virus of a computer

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The first computer viruses were first made as somewhat of a hobby. The main point would have been to have some fun.

How do you know when somethings a computer virus?

It depends on what the virus is targeting. Usually it will shut down your virus scanner, browser, or other main components. If you get a pop-up message telling you to scan your computer (and it never did that before), it might be a virus also.

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Why is it called a computer virus?

The naming of the computer virus has sort of the same roots as the computer bug. When the first viruses were discovered, people named it based on the main aspects of the object. The viruses focused on dumb cloning/reproducing, exactly like organic viruses, and there you go, the computer virus is born.

What are some viruses that cause latent infection?

During a latent infection, the viral genome is present within the host's cells but it is not being replicated nor is any cellular destruction taking place. Some viruses for which latent infection in the main type of host-virus interaction are:Human Immunodeficiency Virus (HIV)Herpes Simplex virus (HSV)Varicella Zoster virus (VZV)Cytomegalovirus (CMV)Epstein-Barr virus (EBV)

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What part of the computer can a virus affect?

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Which part of a computer does a virus affects?

A virus may destroy all data stored in the hard disk by either formatting it without warning or by destroying some of its sectors.A virus may change the boot sector of the hard disk. If the boot sector of a disk is affected, it cannot boot the computer.The computer viruses are automatically loaded into the main memory of the computer and remain in the memory. This slows down the data accessing speed of the computer.A virus can destroy BIOS of the computer.

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A computer virus can damage files. It can also interfere with computer's operation

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Anti-virus software and firewalls are the main safeguards used.

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a computer virus is a bad effect that can damage your computer. and anti-virus is a special tool that is responsible on eliminating virusesupdate by mastermind - the difference is a small script an to find a virus an antivirus needs a code of a virus this is stored in a virus dictionary this also has a extra bit of code in it too keep it from being active this is the main part of an anti virus the rest is just a code the searches your computer for the codes in the dictionary so it is important to keep updating your old software to keep up with the new viruses

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How many different types of computer viruses are there?

main types of computer viruses are, transient virus, resident viruus, stoned virus, time bomb, logic bomb, spoofing, trogen horce viruses, masquerading, deniel of service.

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One of the main ways to remove a trojan virus is to constantly update your antivirus software to make sure that it always is protecting your computer from any viruses that could get its way into your computer.

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What is the main difference between email viruses and Trojan horses?

A Trojan horse can come to you in a Email and so can a virus. Some will say a Trojan is not a virus but, lets face it, they both infect your computer. A Trojan "virus" has to be initiated by you. By this I mean you have to unknowingly download it or open an email attachment. A virus is a self replicating infection that will spread through your computer and eventually over take it. The main difference between the two would have to be that a Trojan is sent out by a hacker to usually record your key strokes and find out what your interests are and then send you advertisements related to your interests with the hackers affiliate link embedded so the hacker makes money when you click on the links. A virus is mainly out to do damage to your system, and reach out (in some cases) through your contact list and do damage to their computer as well. The main point here is they are both nasty. They both can do damage to your computer and spread to other computers. If I had to say which one is worse, I would have to say the virus, but only because you said I had to pick one. Read a bit more over at my site if you want,