[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...

Apple has released Mac OS X Lion in the Mac App Store for $30. Separately, Apple will also begin offering Lion on a USB thumb drive in Apple stores come August. Right now, you can grab Lion from the ...

There are several common ways people can verify file system integrity in OS X, including booting to Safe Mode, using Disk Utility, or running the 'fsck' tool. These options have had some people ...

Like Lion (OS X 10.7) before it, Mountain Lion (OS X 10.8) doesn’t ship on a disc—it’s available only as an installer app downloadable from the Mac App Store ...