A computer freeze up, in which the system becomes unresponsive to any input, is a frustrating experience and can lead to the loss of unsaved documents. Sometimes it is possible to recover from a ...

As with all computer glitches, it never hurts to do a malware scan and see if something nefarious is causing the problem—especially if you haven't done so in a while. Grab a free scanner like ...

Strange pop-ups, unexpected apps and a mind-of-its-own webcam? Here’s how to tell if your computer has been hacked—and what to do about it. Internet users with lackluster security aren’t the only ones ...