Always wandering on the internet, how can one avoid getting hurt? I believe friends who often go online must have deep feelings about this sentence. Compared to a few years ago, the network world today is far from peaceful. Even if you behave properly every day, viruses and Trojan horses will still find ways to come knocking. Therefore, regularly giving your computer a check-up is the right way to keep your beloved machine healthy. However, I believe many friends, like the author, are always too lazy to download those security tools. If you also think this way, then why not try out this online version of Baidu Security Center? You should know that with its help, the author's computer was finally able to be reborn.