The Ultimate Guide to Running macOS from an External Drive Whether you're looking to expand your Mac's storage without paying for Apple's high-priced internal upgrades, test a new macOS beta, or create a portable workspace, installing macOS on an external drive is a game-changer. Why Go External?
The installer will open automatically once downloaded. 4. Install macOS on the External Drive Run the Install macOS app you just downloaded. Click Continue and agree to the terms. When asked to select a disk, click Show All Disks . Select your External Drive (labeled "macOS External"). Click Install .
Hold the until "Loading startup options" appears. Select Options > Continue . Go to Utilities > Startup Security Utility .
The Ultimate Guide to Running macOS from an External Drive Whether you're looking to expand your Mac's storage without paying for Apple's high-priced internal upgrades, test a new macOS beta, or create a portable workspace, installing macOS on an external drive is a game-changer. Why Go External?
The installer will open automatically once downloaded. 4. Install macOS on the External Drive Run the Install macOS app you just downloaded. Click Continue and agree to the terms. When asked to select a disk, click Show All Disks . Select your External Drive (labeled "macOS External"). Click Install .
Hold the until "Loading startup options" appears. Select Options > Continue . Go to Utilities > Startup Security Utility .