Topher KesslerMacworld

Topher Kessler has been an avid Mac user since 1991. He was the primary contributing author to CNET's MacFixIt blog from 2008 to 2014 and currently posts at MacIssues (macissues.com).

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Beyond the basics: OS X's advanced printer tools

You probably know how to set up a printer in System Preferences. But did you know about OS X's other powerful options for configuring and managing printers?

Do you have bad RAM? How to find it and how to fix it

Sadly, memory modules can sometimes go bad, causing your Mac to display a variety of perplexing symptoms. Here's how to recognize and solve the problem.

How to troubleshoot a frozen menu bar

Sometimes items on your menu bar, or even the entire bar itself, can freeze up and become unresponsive. When that happens, here's what to do to get things unstuck.

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Four reasons you should use OS X's System Information utility

When it comes to troubleshooting hardware and software problems on your Mac, the utility formerly known as System Profiler can be a lifesaver.