When we connect to the Internet or let other people use your PC, we need to make sure that our sensitive information remains safe from other people or viruses. In particular, if you share files with others and connect to a public network to surf web pages, you should take steps to protect your computer from harm. Because hackers can attack your computer by entering your computer via the Internet and stealing your personal information, or downloading malware to your computer. But there are ways to protect your computer from these online hackers and malware. To protect your information, there are many software or utilities that can protect your identity. There is a utility called "Microsoft Fix it", which can be downloaded for free from the Internet (http://support.microsoft.com/mats/Malware_Prevention/). In order to run its utility, you will need to install it on your computer. Once installed, it will diagnose your system for many security issues. It will check your computer for firewall setting, Internet Explorer pr...