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#HOW TO CREATE A MAC OS X BOOT DISK USB INSTALL#
#HOW TO CREATE A MAC OS X BOOT DISK USB MANUAL#
#HOW TO CREATE A MAC OS X BOOT DISK USB DOWNLOAD#

This will copy all of the applications which are present on the backup disk but not present on the startup disk to your new Applications folder, and automatically skip any applications which are already on the startup disk.Īt this point, after a reboot and some minor adjustments (the Dock may not have your previous configuration for example, if you did this while logged into the same user account as you just updated), your new OS should be indistinguishable from your previous one, while being faster and smaller due to reduced clutter. When operating system updates, it is important to keep up with the latest trends and technology. Then migrate the applications by selecting Copy on the External Backup/Applications folder on the backup disk then Paste on the startup disk (eg: Macintosh HD). Image via Step 4: Drag your USB (or a Dual-Layer DVD) drive from the list on the left into the 'Destination' box and click 'Restore' (or just click the 'Burn' button in the upper left if youre using a Dual-Layer DVD) and in 10-30 minutes (depending on whether youre using USB 2.0 or 3.0) youll have your backup disk ready to instal on as many Macs as you like.

This migrates all of your personal data and settings to your new home folder. Go to the backup disk and use Duplicate (free) or Mac Backup Guru to right-click and select Copy on the home folder (eg: External Backup/Users/Bob) and then Paste on the Macintosh HD/Users folder on the startup disk.

Note: The Finder’s built-in “Copy” and “Paste” will not work for the following.

Boot up from this newly created startup disk. TransMac creates a macOS USB bootable drive warning.

#HOW TO CREATE A MAC OS X BOOT DISK USB INSTALL#

Create a bootable USB Installer with Install Disk Creator and boot from it. Erase the startup disk and install macOS onto it. Select dmg macOS file to create a bootable USB drive Click the Open button.

Two options are to use Duplicate (a free utility which can copy and paste an entire bootable volume), or Mac Backup Guru (a paid, fully featured backup utility with unique incremental backups capability) for that.

Backup all the data to an external disk with a clone.

#HOW TO CREATE A MAC OS X BOOT DISK USB DOWNLOAD#

You can download macOS Big Sur by clicking here.

Download the macOS installer from the App Store.

Here is the clean install procedure which can be performed at least every time a new version of macOS is released:

#HOW TO CREATE A MAC OS X BOOT DISK USB MANUAL#

However, it has been shown in recent times that in the vast majority of cases if you simply run a clean install, then duplicate your old home folder to your new disk, you will get all of the same advantages as a clean install followed by manual migration, with a small fraction of the effort. It used to be common practice to occasionally run a clean install, and then manually migrate all the files and settings over in order to get a completely fresh start. That will make your Mac run blazingly fast for a few months or more, and many people report that it fixes longstanding problems they’ve had too. When you install a new major version of OS X, or after some time has passed, it is a good idea to do a clean install (that is, to erase the disk you are installing OS X onto as part of the installation process).