What Is Computer Virus

What is Computer Virus

A compute virus is a computer application program that has the ability to replicate itself and also infect a computer system.

A virus can spread from one machine to the other over a network or through a removable disc such as a CD, DVD or USB drive. A virus can also spread by attaching itself to emails and can automatically mail itself to hundreds of email addresses found in email address books.

A virus operation involves the use of executable code or program. When a virus attaches itself to a legitimate application program, each time the application program runs, the virus runs simultaneously and writes to the memory of the computer. The virus can then replicate itself and infect, corrupt or modify files on the computer system, and from there spread to other computer systems.

How do you know your computer system is infected by a virus?

If your computer system exhibits some or all of the following signs then your computer may have been infected:

• You computer may stop responding and keep freezing up
• You computer may loose speed and begin to run slowly
• You computer may crash continuously and needs to restart
• Some applications on your computer are suddenly corrupted and refuse to load or work correctly
• Error messages begin to pop up on your screen
• Your documents don’t print properly
• Your computer may suddenly go off and restart without your intervention, and then fails to boot correctly.

You should note that some of these signs may be due to a faulty hardware or software problems. However, if you notice these signs, it is best to quickly scan your PC with antivirus software to be sure you are not infected.

How to Remove Computer Virus

You should be able to remove computer virues from your computer system by using a legitimate antivirus or antimalware software such as Malwarebytes' antimalware.