In this article, you’ll find detailed instructions and answers to your questions on how to make a bootable USB on Mac. You can try out the different tools for free, so download it, and see what you think. MacKeeper can do everything from finding malware to updating your apps for you.

When the scan is finished, review the results, and click Fix items safely.

Select Find & Fix from the menu in MacKeeper.

You can do that with MacKeeper’s Find & Fix feature, which will scan your Mac for a variety of different problems. It’s a good idea to keep your Mac optimised when you’re asking to create a bootable USB drive. It’s a handy appliance-even more so if you use a small external flash drive that you can carry in a pocket. You can also use it to reinstall the operating system on a Mac that won’t startup. Such a tool allows you to install any version of macOS on multiple Apple computers easily.

Why would you want to create an external boot drive for your Mac?

Find someone you trust to make you a bootable Install macOS Sierra installer drive - a 8 GB USB drive works well for this.A bootable macOS (previously, OS X) install disk is a portable device containing all the necessary installation files for a selected version of macOS.

You might be able to use Internet Recovery to install the OS that came with your Mac - so you’d need to buy or have a Mac that shipped with 10.12.

You might be able to take your Mac to Apple Service and have the OS loaded.

If Sierra legitimately isn’t in your purchased list, and for some reason the KB above gets pulled at some point: This is a change from older releases where you had to make sure and get an installer purchased before general release. If you feel it’s missing, check with Apple Store support and your “purchase” receipt emails / purchase history. If for some reason that article or link are gone, you may need to have an Apple ID that previously downloaded 10.12 Sierra - then it will be in purchased and a quick download. The link to the installer on the Mac App Store is: Use the safari browser for all these links, please is you run into issues

official support article on old download options Īpple makes Sierra available even after High Sierra is released.

startup keys help recovery select multiple versions.

These links will change annually for the expected future, so please consider using Apple articles or other answers here to locate the correct links if the ones below change or are removed. Apple now has a page up and live store links to download Sierra after High Sierra was announced.

How do i download sierra os x