Holding down the shift key while turning a Mac on will boot it into Safe Mode. Here's how to start a Mac in Safe Mode and use it to diagnose issues.

Safe Mode is a basic diagnostic mode for your operating system that starts the computer without most of its drivers and software.

If your Android phone is misbehaving, crashing frequently, freezing, restarting randomly, or lagging significantly, it's likely that a third-party application is the culprit. Even if you are cautious ...