Stop laughing! It's harder than it used to be! Dan Frakes stops by to help us figure it out. Caitlin and Oscar also join us to discuss 'Steve Jobs.'
Having a bootable hard drive or USB flash drive is a handy troubleshooting tool.
Ever since Lion (OS X 10.7), Apple has hidden your personal Library folder (~/Library) by default. In Lion and Mountain Lion (OS X 10.8), you could make the folder visible, but it required some work. In Mavericks (OS X 10.9) and Yosemite (OS X 10.10), it's a simple, easily accessible setting.
Creating a bootable installer disk lets you install Yosemite on multiple Macs and also makes a handy emergency drive. Here's how to set one up.