Essential to peace of mind is protecting the PC and your online privacy. When connected to the web, your work and data is open to attacks of various kinds including harmful downloads. A simple game, picture, or program may be the vehicle for malevolence. So, you need to check whether every file that you download, open, or save, is safe or whether there are irregularities of any kind.
Protect your PC by:
Blocking hackers and viruses by installing the latest firewall and antivirus software. It is advisable to install a software firewall even if you have a hardware firewall in your system. A software firewall is designed to query whether or not it should permit X, access. The user can specify which applications can access the port and which cannot. A bi-directional firewall such as ZoneAlarm3 and Personal Firewall 5 will monitor both inbound and outbound traffic preventing Trojans and backdoor programs from functioning.
Block downloads that install unwanted programs by using the options in Internet explorer to block all software from source X specified by you.
Install software programs that will constantly scan your PC for spyware, adware, dialers,...