Most days, it hardly matters what your Mac serial number is. Who cares about a random series of letters and numbers? But if you ever need to use your warranty and have Apple repair your Mac, you'll ...

If the computer sounds like it's turning on but you don't see anything on the screen, the computer may be booting and the monitor just isn't showing an image. Check to make sure your monitor is ...

If you ever need to have a repair performed on your company's HP computer, it's likely that an employee at the repair shop will ask when it was manufactured. This helps the technician get an idea of ...

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 ...