Viruses and other malicious programs like spyware and worms can cause inconvenience and damage to your computer. Some of the problems that you may experience when your system is infected are slowness, freezing, unwanted pop-ups, redirection to other sites, unable to access the Internet or other programs on your computer, etc. Your files may also get corrupted and worse, your personal and online information can be stolen. This is why it is important to have a powerful security application installed on your computer to prevent these issues from happening. I used DoctoAntiVirus and got all the protections i need, i am overall happy with it. docto-antivirus.blogspot.co.il/