![]() This almost always results in a Mac running faster after a clean install, since macOS has started over with a clean slate. Another benefit of using a bootable disk for a macOS installation is that you can perform a clean install.Ī clean install allows you to get rid of junk apps and files that may have accumulated over time. ![]() These include regaining access to a Mac that refuses to boot or recover files that seem to be lost. You can also use the built-in recovery tools that come with the macOS installer to troubleshoot and fix different kinds of issues. This can save quite a bit of time, considering the most versions of macOS have an installer size of 12GB. ![]() A bootable macOS Mojave installer has several benefits, including the ability to format a target disk, easily perform clean installs, the ability to install. Why Would You Need to Install macOS From a USB?Ĭreating a bootable USB drive and using it to reinstall to macOS is a bit of a lengthier process as opposed to simply updating macOS from the Software Update section of the System Preferences, but it has its benefits.Ĭreating a bootable USB disk allows you to install or update macOS on multiple systems without having to download the installer on each Mac. Creating a bootable MacOS Mojave beta installer drive with a USB key or flash drive is a common desire for many advanced Mac users testing the upcoming macOS 10.14 operating system.
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