No matter what time did the computer must install security software, or being hacked or what virus, basically did not save, remember when I just bought a computer, my brother is to I installed Trend Micro, he said the antivirus effect is better, in fact, I do not really understand, but I have been in use. Later, only to know the harm of the virus, like now I have a lot of important documents and papers on the computer inside, if the virus, it can be said that I will not be able to find these files. So there is a good security software is really important, I am now even if you change the computer, it will be Micro Trend.