Why should update antivirus?
Each day, one type of virus produced. To protect your computer from it, antivirus must first recognize the virus. That's why antivirus perluupdate always, so that it recognizes the latest viruses.
They say you do not know it is not love. Antivirus said, do not know how I want to detect the virus.
Do I need to update antivirus daily?
Not necessarily. For some people, to update antivirus daily is abusive, especially if your computer does not have an Internet connection. My suggestion, your antivirus updates at least once a month.
If my antivirus out-of-date, would not be able to use already?
Your antivirus can still be used even if it is out-of-date. Only it will not be able to detect if there are new viruses, that's it.
How to update antivirus?
If your computer has an Internet connection, the update process will be done automatically. If not, you can download updates for antivirus in cyber cafe, then put it on your computer manually.