The idea behind a macOS Clean Install 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). 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. 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.

How to create an app for my book club. 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. Mac Clean Install Procedure Here is the clean install procedure which can be performed at least every time a new version of macOS is released: • Download the macOS installer from the App Store. You can download macOS High Sierra by clicking • Backup all the data to an external disk with a clone. Two options are to use (a free utility which can copy and paste an entire bootable volume), or (a paid, fully featured backup utility with unique incremental backups capability) for that. • Create a bootable USB Installer with and boot from it. Erase the startup disk and install macOS onto it.

Boot up from this newly created startup disk. • Note: The Finder’s built-in “Copy” and “Paste” will not work for the following.

Sep 24, 2018 - It's still pretty easy to make a bootable USB install drive for macOS Mojave. Apple hasn't shipped operating systems on physical media in. Re-download new Mojave installers and make new install drives periodically. And if your Mac is experiencing problems, a bootable installer drive makes a handy emergency disk. (OS X Recovery lets you repair your drive and reinstall OS X, but to perform the latter task, you.

Go to the backup disk and use (free) or 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. This migrates all of your personal data and settings to your new home folder. 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). 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. At 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.

Paragon Rescue Kit for Mac allows to create a bootable recovery USB-flash drive or external hard drive in a few clicks, that will help you to take an immediate action whenever a hardware malfunction or a system crash will occur. After booting your Mac with the rescue-media you will be able to use all the necessary tools to bring your Mac back to life. Paragon Rescue Kit for Mac supports all Intel-based Macs, providing the possibility to easily back up your Windows OS, Mac OS X and data partitions to any media.