Here are the steps to create a macOS bootable USB media (Sierra) with GPT partition support on Windows 10 or 7/8.1 to rescue your Mac. Here are the steps to create a macOS bootable USB media (Sierra) with GPT partition support on Windows 10 or 7/8.1 to rescue your Mac. How to quickly create a macOS bootable USB on Windows. Nov 13, 2017 - Your new Mac doesn't include an installation media. Covered how to do this from the command line (See How to create a bootable USB to install OS X). To get this software, open the App Store and search for 'High Sierra.

Create USB installer with Boot Camp Assistant After downloading the ISO file, you'll need to use Boot Camp Assistant to move it to a bootable USB drive. • Insert a USB flash drive to your Mac.

Make sure it's at least 8GB, which is usually marked on the USB stick. You can also check by right-clicking the USB drive on your desktop and clicking Get Info. Check if the number next to Capacity is at least 8GB. All the files in the drive will be deleted, so make sure there are no important documents inside.

• Open Boot Camp Assistant. The easiest way to launch it is through Spotlight Search, which you can bring up by pressing Command and Spacebar. Press Enter to launch the app.

• Check the box for 'Create a Windows 7 or later version install disk' and deselect 'Install Windows 7 or later version.' • Click Continue to proceed. • Boot Camp Assistant will automatically locate the ISO file from your downloads folder, but make sure it is the right file. Click the 'Choose' button and locate the ISO file. Make sure the destination disk is the USB thumb drive you've inserted. • Click Continue.

It can take about 20 minutes to format and set up the USB installer on the Mac. • When Boot Camp Assistant is done, the USB drive will be renamed to WININSTALL. Click Quit to close the app and then Eject the USB drive. You now have a bootable USB drive with the Windows 10 installer. You can use it to from scratch. We told you it was easy! Have you tried creating a Windows 10 installer USB drive from a Mac before?

Did you encounter any issues? Let us know your experience in the comments! This post may contain affiliate links. See our for more details.

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. 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. 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). Google chrome.

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.