I am experimenting with building a small, lightweight, bootable Mac OS X 10.5 flash drive image for diagnostic purposes. So far I haven't found any USB 2.0 flash drives that have been very fast in ...

If you have bought an Apple Silicon Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. Here's how to boot macOS ...

It's handy to have an external, bootable macOS Ventura installer, but you practically have to fight Apple to make one. Here's what you have to do. In Apple's ideal world, you let your Mac update ...

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 ...

Making a bootable macOS Big Sur USB drive is a quick and clean way to install a fresh copy of macOS on your Mac. This hands-on tutorial is valid for both the public and developer beta versions of ...

Reformat USB Flash Drive To create the bootable installer, plug the USB drive into your current Mac. Click the Go menu and select Utilities. Open Disk Utility, select the USB drive, and click the ...

In last month’s column, I described the hurdles that Mac OS X puts in your way when you try to create a bootable disc, especially a custom bootable CD, DVD or flash drive. I offered various solutions ...

Download macOS Mojave DMG files from official links and follow clear steps to install Mojave on supported or unsupported Macs ...

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 ...