Introduction. Well, in our days having a PC already is something normal, independent of the Windows operating system that we choose (XP, Vista), once we have it in our hands the following questions arise: is the virus that brings good? Can I immediately use MSN to chat with my friends? My PC builds up useless files that are deleted or I have to delete personally? I have spoken much of the P2P programs (Ares, Torrent, emule), are where the bass? What are the Spyware? How do I protect? They also tell me that I must have a firewall or firewall, but where he got it? Told me something like disk fragmentation. What is that? Steps to follow. Step no. 1 first of all is a good antivirus. Most of the best antivirus are pay, i.e. you must buy your license. Within these anti-virus Kaspersky, Nod 32, Norton, McAfee, and others we can find.
However there are free, why not less efficient alternatives. I have personally tried 2 free antivirus: AVG Free and Avast Free Edition. That I can say about AVG Free. I had bad experience with this antivirus, since all the Trojans passed him and my PC is filled with viruses and demases. In addition his daily update is really a nightmare, in the sense that opens you update Windows that are really annoying. Many times gave him by scanning the disk every time you lit your PC and stop it was another nightmare. Or tell them when you try to remove it from the system, actually brought me problems. Avast Free Edition.
My favorite antivirus. Installs easily and gives you the option to scan the disk for viruses and deletes you all Trojans it detects. Your daily update is wonderful, quiet, without pop-up Windows and once warns you for the only time that the database was updated.