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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The ins and outs of an OS X Permissions fix

The term "permissions fix" gets thrown around as a solution to all sorts of problems, like when your Mac slows down or experiences random crashes. Here's a guide to permissions, and various ways to run permissions fixes.

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How to password-protect your Mac--and keep other people from using it

Whether you just bought a brand new MacBook or are tethered to a long-lasting Mac Pro, use these password tips and OS X's security features to keep your data away from prying eyes.

Power tips for managing files in Appleā€™s Finder

You're already doing most of your file management in the Finder--now add some hotkeys and modifiers to make it even easier.