Keeping That New PC Clean and Pure


By RIVA RICHMOND
New York Times
September 2, 2009


School starts soon, and many people are getting spanking-new computers. Ah, the joy of a new and more powerful toy — and a clean slate.

A new PC, whether you know it or not, may well have freed you from many malicious programs that steal credit card numbers and other valuable information or otherwise obstruct your safe and private use of the Internet. Now is the time — while you’re getting everything set up just the way you like it — to take some steps to keep your new machine clean and free of malware. Here is what you need to do before you do anything else.

CHECK YOUR FIREWALL SETTINGS Do this before you even connect your computer to the Internet. Firewalls prevent certain unwanted traffic from reaching your computer, including worms that spread through network connections. New laptops and desktops with Windows Vista (and, come Oct. 22, the next version of the operating system, Windows 7) and netbooks using Windows XP SP2 or higher have a firewall that is built in and turned on by default. You can make sure all is well by going to the Windows Security Center, clicking Start, then Control Panel, then Security Center and Windows Firewall.

Mac users can check and adjust their firewall settings by clicking on the Apple icon and going to System Preferences and clicking on Security and then Firewall. At a minimum, choose “allow only essential services.â€