Computer viruses and how to prevent them

Nowadays computing is a great help for all of us, they are work stations (computers) that save us time, keep our files and allow us to communicate and get information in real time through (internet), but as everything has its good side also has its bad side and it is the viruses and therefore I will place the following concept:

Computer Viruses: It is a program that can infect other programs, modifying them in such a way that they cause damage in the act (delete or damage files) or affect their performance or security. Source: Desarrolloweb.com

Currently, a large number of viruses are generated daily according to Betech (2018) of 30,000 - 50,000 a day and in a month half a million viruses, in short our computer is exposed to large amounts of cyber attacks the question is how can I avoid that my PC is free of viruses for this I will give the following advice:

Do not download programs from unofficial pages: There are a lot of pages that allow you to download applications for free, that's what I call trolling horse since they give something to receive something from you and therefore you should avoid doing this, since an infected computer generates Many economic expenses.

Avoid downloading music and videos: The largest amount of viruses are hosted in many formats jgp, mp3, mp4 among others and what is the reason ?. (It is the buffer and the image), in these features there come these undesirable programs please avoid them.

The Pendrive: For nothing of the world enter a Pendrive to your computer that does not know of its origin, that is to say this hardware is the culprit of the majority of the viruses and contamination of the PC, since many users enter the Cyber ​​"I call it the farm of viruses. " And easily contaminates your computer with advice for all, remove the autorun from your computer and pass an antivirus (That owns license) to the Pendrive to avoid any infection.

As a final recommendation: For your security upload important documents such as: word documents or images to online or cloud backup programs (Google drive, Dropbox, among others).

Regards....