#HOW TO RESTART A MAC FROM EXTERNAL DISC HOW TO#
#HOW TO RESTART A MAC FROM EXTERNAL DISC FOR MAC#
#HOW TO RESTART A MAC FROM EXTERNAL DISC MAC OS#

If yes, you can simply follow through the next 2 parts to mount your external hard drive and get your data back with ease.

Check if the external hard drive is visible.

Open Disk Utility by opening new Finder windows > Applications > Utilities > Double-click to bring up Disk Utility.

If your external hard drive is another recognizable format, reformat it to a readable file system for Mac. Mac computer can read HFS+, NTFS, FAT32, exFAT, and exFAT. If the external hard drive shows up, congratulations. Switch USB portД¬hange a USB port and reconnect the external hard drive. If it turns out the drive connection cable is damaged, replace one and your problem is resolved. If not, re-plug the drive and reconnect it to Mac. Also, check if the external hard drive is probably plugged in the Mac computer via its connection cable. Check the cableД¬heck if the external hard drive cable is plugged in correctly, not loose. Check External Hard DriveД«efore you start to fix the external hard drive unmounted error, you should first check the external hard drive, finding the real cause of the device unmounted error.ДЇollow through the checking tips here and find out the problem: # 1. You can follow to resolve the same issue on your own now.

#HOW TO RESTART A MAC FROM EXTERNAL DISC HOW TO#

Here we'll take the unmounted external hard drive as an example to show you how to force the unmounted external hard drive show up on your Mac desktop without losing any data. Have you ever met this problem that you tried to open an external hard drive on your Mac computer but the disk displayed as unmounted? If yes, you are in the right place.

#HOW TO RESTART A MAC FROM EXTERNAL DISC MAC OS#

If Mac is not compatible with the drive format, use Disk Utility to erase it to Mac OS Extended.

#HOW TO RESTART A MAC FROM EXTERNAL DISC FOR MAC#

If you lost drive data, run EaseUS Data Recovery Wizard for Mac to bring it back.

Open Disk Utility > Select the unmounted external hard drive > Select 'Mount'. Or click Startup Disk and choose a different startup disk.Check external hard drive cable, the USB port on Mac, and its state in Disk Utility.Check your internet connection, such as by choosing an active network from Wi-Fi status menu in the menu bar.В Then click Try Again.If your Mac can't connect to the internet, it displays an alert that an internet connection is required. Windows:В An alert informs you that you need to install Windows with Boot Camp Assistant.Or click Startup Disk and choose a different startup disk, which your Mac will also attempt to verify. Click Update to open the macOS installer, which you can use to reinstall macOS on the startup disk. macOS: An alert informs you that a software update is required to use this startup disk.Enter your administrator password, then click Unlock to complete the download. IfВ FileVaultВ is enabled while your Mac is attempting to download updated integrity information, you're asked to enter a password to unlock the disk.

This information is unique to your Mac, and it ensures that your Mac starts up from an OS that is trusted by Apple. If the OS is unknown or can't be verified as legitimate, your Mac connects to Apple to download the updated integrity information it needs to verify the OS. This is a level of security previously available only on iOS devices.Дuring startup, your Mac verifies the integrity of the operating system (OS) on your startup disk to make sure that it's legitimate. Full Security is the defaultВ setting, offering the highest level of security.

How to restart a mac from external disc