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.

Posts from this topic will be added to your daily email digest and your homepage feed. If you can’t get your computer to start up properly, here are some methods to try. If you can’t get your computer ...

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Experiencing a sluggish computer? Don't fret! Simple maintenance can revive your PC's speed. Keeping Windows and drivers ...

Speeding up a slow computer can be a challenge, particularly when dealing with older hardware that may be on the cusp of needing an upgrade or replacement anyway. Sometimes, a system simply needs a ...

ZDNET's key takeaways The Black Screen of Death is incredibly annoying, but often easily diagnosed.The most common culprits are outdated software or faulty drivers. With a few quick fixes and basic ...

Try this: Press Ctrl-Alt-Del (and then click Task Manager, if you’re running Windows Vista), then click the Processes tab. Ever wonder what all those items are? You should, especially if you’re trying ...