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Got a Computer Virus? Here's What to Do (and Not Do)



DO: Disconnect from your home network


Once you realize that you might be infected with a virus, the first thing to do is disconnect from your wired or Wi-Fi home network (LAN or WAN), if you have one, to prevent the virus from spreading to other PCs in your house. You'll still need to get online, however, so don't just unplug from the wall. Instead, all you need to do is turn off the network discovery function, as well as file and printer sharing (found in the Network and Sharing Center in Vista, and in System Preferences: Sharing on a Mac). In Windows XP, the method is a little more convoluted (click here to find out how). All in all, this first step isn't a foolproof defense, but it's one more door closed to your unwelcome computer guest.

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