In the Software Update section, you will find the option to download the installer. Head to System Preferences and then click on Software Update to download the latest version of the macOS installer for installing on a USB. Then, select a name and make sure to keep the format as Mac OS Extended and finally click on Erase. Click on it and then click on Erase button at the top. There under the left panel, you would find your USB drive under the External folder. Then, click on Applications>Utilities and then open Disk Utility. To erase the files, go to Finder on your Mac. But first, you need to make sure you have nothing else stored on the USB drive. Formatting the USB flash driveĪ bootable installer for macOS can only be created on a Mac. Buying fake drives can end you up having false storage space and extremely slow transfer speeds.Īlso, before buying the USB drive, you must check your Mac’s port, whether it is a USB-C type or any other. But you need to make sure you are getting a branded Flash drive from a reputable store as you can’t experiment with the genuineness. USB flash drives are cheaper, therefore you don’t have to spend much on them. Here, have a look at how to install macOS with a USB. This leaves you with a faster running Mac. Now, you might wonder what is a clean install? A clean install helps you get rid of all junk files and apps that might have accumulated over time. Besides, a bootable disk can be used to perform a clean install. This will save a lot of time as some of the macOS comes with an installer of huge sizes. Installing macOS via a USB means you have to create a bootable USB disk and that helps in installing and updating macOS on multiple systems without having to download an installer every time. Just read this article till the end and you will understand how simple it is.Īlso Read: Bluestacks For Mac: Install & Download Bluestacks In Easy Steps Why choose USB to install macOS? Worry not, if you are confused at this point about how to install macOS via USB. However, you need to create a bootable USB drive first to install macOS.

It is a great alternative for those times when your mac won’t operate normally or you want to install a particular OS across multiple machines.

You can use an external drive like USB to install or reinstall macOS on your computer.

Mac startup usb flash drive