What is a boot disk and why do I need one? A boot disk is a floppy or a CD that you can use to boot your computer into a state in which you can use it to fix a problem. There will be times that your ...

[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 only sells OS X Mountain Lion as a digital download in the Mac App Store. The installer weighs in at a hefty 4.05GB, but the good news is that you can install your copy of Mountain Lion on all ...

Happy Mountain Lion Day! Now that you have downloaded the 4.34GB installer, you may want to install Mountain Lion on more than one of your personal machines. Do you really need to wait 45 minutes or ...

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 ...