Computer viruses are computer programs coded in such a way to disrupt the various functionalities and running of your computer software programs. Computer viruses cause disrupt through repeatedly performing a process or stopping the execution of a genuine program that you wish to run or even can steal the information stored in your pc and can share to un ethical hackers or cyber criminals.
Computer virus is similar to human virus that spreads very soon once it is downloaded unknowingly with another file and can affect the whole system within few days. When your system starts working improperly with a particular unwanted program could not be deleted just like that then it is the first sign for virus.
If you are unable to move your mouse pointer on the screen moves automatically or if few programs open automatically, these could be symptoms of virus attack too. When a particular program takes more time than normal to start then it is a sign for a problem. Few files may go missing or few applications too. It doesn?t only affect the system alone sometimes the printer too gets affected that printing also becomes a problem. It is better to have anti virus loaded in the system so that such virus can be avoided.
As we expose ourselves more and more in the Internet through our online presence we become more vulnerable to pc attacks by viruses and worms which are malicious programs that shall infect our pc and steal our personal information and thereby enabling hackers to tune it for their unethical purposes. At times, these may even eat up our secured and important information of high value. The top 5 Tips to Defend against Viruses and Worms and thus protect your pc are 1) Installation of most recommended anti-virus, anti-spam and anti-phishing software in your pc and if you find them costly at least go for the free version of them.
2) Enabling firewall and secure browsing in pc and networks in which the pc is connected.
3) Prevent too much of downloading of files, especially pirated ones from file sharing sites which are the hub of viruses and worms.
4) Take a backup of your important files and format your hard drive once in a while, also keep your anti-virus software updated.
5) Clear your browser cookies and cache memory after every browsing period. Whenever there is a possibility for secured browsing of a site, go for it. Check every file or attachment for viruses before downloading, copying from other devices and before sharing them.