How do we know that our computers contain viruses?

When it comes to computer viruses, you will have to installed a anti virus software and I think that's the only way for you to detect viruses. Otherwise you will suffer from computer lag and lots of program malfunctioning cause by viruses. Well you can tell a computer is infected by viruses if you plug in your USB and then if you safely removed it, there will be a message saying something that prohibit you to safely remove your USB. Sometimes this indicate that you have viruses in your PC. :)

Hi. You can know your system is affected if there's an sudden increase in CPU Usage value in task manager. Some antivirus detect only viruses and not others like spywares, adwares, etc. Its better if you use a full fledged antivirus which will be more effective. Happy mylotting.

You said that you use Kapersky. I don't use that so I don't know about it. But there must be an option called 'Boot-time' scan. You have to schedule it. It will ask you to restart your computer. When it will restart the anti-virus will scan the whole system before windows boots. It will clean the whole system. But it will be better if you update the virus database of your AV software first. You may try Avast anti-virus. It's free to use and very secure. I am using it more than 5 years. Have a nice day!

Scanning you PC with an antivirus will not make sure enough protection to your PC but I am quite sure that it will give a little to you. Each of the antivirus is created with the capability to capture only those virus with a particular virus definition and it varies from one to another. The ability to capture images depends on the virus definition enabled on an antivirus program. We people can recognized or know it when our PC turns too slow or when it show bad performances. Mainly when you find something with the software problems, not all the software problems are due to computer viruses but some. I would ask you to use different antivirus with variety of virus definition with it's updates. So that you can keep your PC safe

Hi friend, we can find the virus while running the anti virus scam. If our computer is affected with virus, it will slow down and take a long time to download the files, some times we don't have the ability to connect with internet, if our system is severely affected with virus. A powerful anti virus software will help us to scan the virus and remove it from our system

See my discussions here http://www.mylot.com/w/discussions/2716407.aspx Many good tips and advice by mylot members... :)

Lots of virus has created every month,And there is no anti virus that can detect all of the virus.You have to upgrade your anti virus or change with other anti virus after expired.The sign that your computer has injected virus are : your computer going slow down,your file has broke up,there is message from your anti virus.

I honestly don't know another way to prevent viruses from harming my computer than upgrade my antivirus regularly. People said that some of new viruses are too powerful for antivirus to fight of, so I can't think any other way than upgrading and hope that my computer will survive.

Scanning you computer with a good antivirus you normally suffice. Make sure of course that your antivirus software is up to date. Containing all the latest virus definitions so that it can scan the newests viruses. Other than that all you can do is take care where you surf and what you download. Maybe you can even add a firewall in your defences so that you can be more secure to attacks.

Viruses can be monitored through installing or using anti-virus software. :)

Yes, you can detect whether your system has been infected with viruses. the common sign that your computer has been infected by a virus is that it runs slowly, it runs differently such as strange activities on your computer don't run properly. When plug in a flash device such USB flash drive, the folders are hidden or worse, you experience a sudden shut down with your computer. Putting up warnings and froze your computer screen. that's the most common signs of a computer infected with computer viruses however, you can treat such if you regularly update and scan your system. Assuring you have put clean virus-free stuffs on your computer.

sometimes antiviruses dont do all the job thats why our computer is not tottaly secured with antivirus alone. what im doing is, im also using anti malware programs like "malwarebytes" together with my personal antivirus. it is the best combination, and it makes me worry free about viruses and other things that might harm my pc.

Just scan ur computer with best anti virus software. To avoid anti virus check all files and folders for virus before transfer or downloading from websites.

if your computer is having strange behavior like, slowing... changing icons and sudden freezes, flash drives or external drives are always busy when trying to safely removing them... then probably your computer have virus that is just only diagnostic. the real problem is what kind of virus is attacking your computer and how will you deal with it

Is your computer running slowly?. If your computer got a virus it is much slower than normal performance. Some viruses can cause damage to windows or some of your programs so if you are getting unexpected messages or are programs starting automatically or windows shutting down suddenly. Check the task manager, see the CPU usage if it is above 50% find out why, see what app is using it.