how to create a bootable usb mac os sierra

You can use one of these two apps to help you with the process:īoth apps are fast and straightforward. But why taking the hard way when there’s the quick and easy way?

You can create the bootable installer drive using the Terminal. So if you have valuable data on the drive, it’s wise to back it up somewhere safe.Īnd don’t forget to change the name of your drive to Untitled because it’s necessary for the next step. To create the installer, you need a USB flash drive or external hard drive with minimum 8 GB of storage.ĭuring the process, the drive will be reformatted automatically. You can keep the installer in the Applications folder or make a backup copy in another drive/folder. Because if you continue with the installation, the installer will be removed from your local hard drive after the process.

The installer will be saved in the Applications folder and automatically launch after the download, but you need to quit it. Downloading the macOS Sierra Installerįirst, find and download macOS Sierra in the App Store. But you can’t just copy and paste the downloaded file to a USB drive. Sometimes it’s better to install the macOS using drive installer. It’s a waste of time and internet bandwidth. Second, those with more than one Mac has to re-download the installer file several times, once for each machine. First, the file size is too big for some to download over the internet. This “everything on the cloud” method has several disadvantages, especially regarding macOS installer. In the perfect world, this approach is fine and dandy, but we are not living there. Apple Cannot Check It for Malicious Softwareįor the last few years, Apple is pushing its AppStore - both the iOS and macOS - to distribute all applications, including the operating system.Software Update Is Required to Connect to Your iPhone Error.Fix Backup and Sync Has Encountered a Fatal Error.Change The Login Screen Wallpaper in Catalina.Handoff Not Working Between iOS 13.2/13.1/13, macOS Catalina and watchOS.How to Reset Mac to Factory Without Losing Data.Library is Not Working in Photos in macOS Catalina.Fix An Unexpected Error Occurred While Signing in Catalina.How Much Space Do You Need for Catalina.

How to create a bootable usb mac os sierra