A computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user.
Not possible.
no, itunes is very safe and causes no such problem towards your computer
The effects of a computer virus is loss of information or your computer will shut down or your computer might just break and you will need one depending on the type of virus you have so becareful on what you download or open.
Yes just scan your computer
A virus causes an infection. It is the actual file that causes the infection. An infection itself is the action or state of the computer's security being compromised by a virus or other malware.
Use a virus removal tool like Spybot Search & Destroy...duhhhhh.
Sure mine is virus free, but to have a computer that is completely immune to viruses always I think would be impossible. Hackers are competing with anti-virus companies to find new ways to get into your computer.
that is not possible could not happen
It is possible the computer already has a virus that is preventing the installation of anti-virus software. You may have to reinstall the operating system from scratch to get rid of the virus. There is no other reason I can think of as to why the computer will not install the software.
Yes, it is.
Viruses are computer programs intentionally created by douchebags, to ruin your computer, usually for no good reason. When you download software or media files from really any source, a virus could be hidden in it and that's how it gets on your computer.