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Can I run IMAC from external hard drive?
Yes, you can have everything installed, and boot from an external hard drive. You would have the choice of either USB 3.0 or a Thunderbolt external drive. The TB will be somewhat more expensive, and the additional speed may not necessarily be worth the money to go Thunderbolt.
How do I choose my startup disk on a Mac?
Change your startup disk for every startup
- On your Mac, choose Apple menu > System Preferences, then click Startup Disk. Open Startup Disk preferences for me. If the lock at the bottom left is locked , click it to unlock the preference pane.
- Click the icon of the disk you want to use, then click Restart.
How can I boot iMac from external hard drive?
choose your external hard drive as startup disk, use your friend user name and password to login as administrator. once logged in. open disk utilities or carbon copy and create an image from your external hard drive to your imac drive. once you are done shutdown your imac and start it without your external hard drive.
What happens when you connect an external hard drive to a Mac?
As long as your USB 3.0 external drive is connected to a Mac with a matching USB 3.0 port. But what happens when a USB 3.1 or 3.0 external hard drive connects to your Mac with a USB 2.0 port. Your drive will send files to and from your older Mac at USB 2.0 speed. (480 Mbit/s minus overheads).
How to start OS X installer from external drive?
1 Open your Mac or restart the device if you were already using it. 2 When the startup music is playing press and hold the “C” key from the keyboard. 3 This will start the OS X installer from the CD/DVD on your Mac.
How can I connect external storage to my MacBook Air?
If your Mac has a USB-C port, see About USB-C. Connect the device to your Mac using the cable that came with it, then use the Finder to view the connected device. If the cable doesn’t have a connector that fits in your Mac, you may be able to use an adapter. See the documentation that came with the device.