Antivirus (antivirus) is software designed to recognize, detect, prevent, and remove malware, Trojans, adware, and spyware. Anti-virus software can be useful in some cases, but it can also have a negative impact on computer performance, which is a particular problem these days with weaker netbooks and cheaper laptops.
Inexperienced users can also sometimes do more harm than good – they do not understand the antivirus queries and can harm themselves through their ignorance.
The first viruses started appearing in the early 1980s, but they mostly just multiplied and did no harm. It was only later that viruses began to modify or even delete user data. Before the rise of the Internet, viruses were spread mainly by floppy disks and hard drives. Today, they can spread via USB flash drives, but in the vast majority of cases they spread mainly over the Internet.
In general, the best prevention against viruses is still common sense…
