Is that a virus, or a malfunction?
Today's PC viruses, Trojan horses, worms, and blended threats can cause run-of-the-mill Windows or application problems, out-of-memory errors, intermittent failures to fully start up, or installation or operation problems with applications. But these symptoms could also be caused by typical hardware or software malfunctions, making diagnosing the problem a bit tricky. Here are some suggestions for determining if a PC has a virus.
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