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Troubleshooting External Hard Drive

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I have a NESO hard drive to back up my Macbook operating system v10.5.7. I cannot get anything copied onto the hard drive. Please could you advise?Kate Dubensky

Formatting your External Hard Drive for Mac

There is a good chance that your external hard drive is still formatted for a PC, not a Mac, as most components are pre-configured for use on Windows compatible systems. If this is the case, then your external drive is likely formatted as NTFS, which is normal in a PC, but not prime for Mac. Mac operating systems can read from NTFS drives but they can't write to one, which means that you could open files from your external drive but not save files to it. You can resolve this by reformatting the drive for your Mac operating system and an HSF+ configuration.

Check your External Drive Format

First of all, you can check the drive to see if this is the problem.

  1. Connect the drive to your computer
  2. Locate the icon on your desktop
  3. Hold down the CTRL key and then click on the icon
  4. Now click on Get Info
  5. If properly configured, the drive will be formatted as Mac OS Extended. If not, it will show as PC Exchange

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Save all Files from your External Drive

If it shows as PC Exchange, follow these directions to change it. You should realize that formatting the drive will remove any files, programs or other information that you have managed to save to it so far, so be sure to transfer all important data off the drive before you proceed.

Format your External Hard Drive

  1. Open the Applications folder
  2. Choose Utilities, then Disk Utilities
  3. There will be two icons for each drive listed
  4. Select the first external drive listing then click Erase
  5. Choose Mac OS Extended
  6. You might also want to check the external user's manual to see if there are any other recommended steps or advice.

Choose Clear File Names

Another good tip is to remove any special punctuation symbols such as / or + from your file names because they can interfere with normal paths. Alphanumeric file names are the best and safest option for communicating between devices. I hope this does it for you, good luck!

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