Updating anti virus
Antivirus software runs in the background on your computer, checking every file you open.
This is generally known as on-access scanning, background scanning, resident scanning, real-time protection, or something else, depending on your antivirus program.
Since new viruses are frequently distributed, it is important to keep your software's virus database up-to-date.
If you are a Windows user, it is smart to have at least one antivirus program installed on your computer.
Antivirus software is a type of utility used for scanning and removing viruses from your computer.
While many types of antivirus (or "anti-virus") programs exist, their primary purpose is to protect computers from viruses and remove any viruses that are found.
Utilities that include both antivirus and firewall capabilities are typically branded "Internet Security" software or something similar.
While antivirus programs are available for Windows, Macintosh, and Unix platforms, most antivirus software is sold for Windows systems.