Laptops quietly monitor their own health, but most people never tap into the tools that can warn of trouble long before a crash or data loss. Built-in hardware diagnostics sit below the operating ...

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. Wondering if your smartphone is in good health? Maybe it's ...

Apple Knowledge Base article #305190 describes how to run diagnostic tests on an Apple TV. To do so, simply hold down the Menu and Down (-) keys on the remote for about 6 seconds. This causes Apple TV ...