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Error Code 1309 🔧 What Is It and How to Fix It? [macOS]

Error Code 101 How to Fix It

What Is Error Code 1309 on Macs [macOS]?

Have you encountered Error Code 1309 while using your Mac? In fact, this error is considered to be one of the “classic” errors that may affect macOS. Error Code 1309 happens while transferring files from the Mac to an external hard drive, mostly when the file is quite big. It is notable that this error code can appear on both Windows and macOS. However, in this article, we provide detailed information specifically for Mac users.

Error Code 1309 Summary

Name Error Code 101, also known as Video Error 101 “An unknown error occurred (-101)” or Runtime Code 101 Quicktime Error 101
Type Copying Files Error
Short Description Error 101: Quicktime has encountered a problem and needs to close. We are sorry for the inconvenience.
Symptoms A pop-up appears, saying Apple Quicktime has encountered a problem and has to close.
Error Cause External/flash drive
Fix Tool Try this fix to repair your Mac from errors and optimise its system performance:

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User Experience

What does an Error Code 1309 error message look like? If you encounter this error, this is the message you will read on your screen:

The operation can’t be completed because an unexpected error occurred (error code -1309)

It is noteworthy that this error message is quite old and it won’t go away because it is related to the external drive, not the operating system itself. The error happens when you are copying a rather large file.

How to Fix Error Code 1309 on macOS?

First, let’s cover the reasons as to why this error message is appearing in the first place. You should keep in mind that the file you’re trying to copy is corrupt. Another possible scenario is that the transferring process was interrupted because the drive was disconnected by accident.

The most notable reason, however, is the flash drive itself – because it has the FAT32 format. Did you know that flash drives usually support the NTFS (mainly used by Windows) and FAT32 format (used by both Windows and macoS)? FAT32, however, requires that the files cannot be larger than 4GB.

Since the error code is related to copying files larger or close to 4GB, you may need to reformat your external drive to another file format.

First, check the current format of your hard drive by opening Finder and locating the external drive.
The next step requires right-clicking and selecting Get info.

In case the hard drives turn out to be FAT 32, you will have to change it so that you can copy files larger than 4GB. The recommended format is Exfat because it is compatible with both Windows and macOS, making it more adaptable. How should you do this?

  1. Launch Disk Utility to erase and format the flash drive.
  2. Select the drive from the left bar.
  3. Click Erase at the top-right part of the screen.
  4. You are prompted to name the drive and select it format, so be careful to choose the correct format for your needs.
  5. Once the reformatting process is finished, eject the external drive, and wait a while before inserting it again.

Now, your files should copy without any trouble, meaning that you will no longer encounter the Error Code 1309 message on your Mac.

How to Avoid Errors on Mac

If you encounter lots of errors while using your Mac, you should consider scanning it to optimize its performance automatically.

If you have tried various fixes for various errors but you keep getting error messages, then consider that your Mac can be compromised by:

You can fix this by running an automatic scan of your Mac using a professional anti-malware program. Such a tool is created to help detect and delete any malicious or suspicious files that may be causing errors. It will also optimize your machine to make it run faster.

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Spy Hunter scanner will only detect the problem. If you want the issue to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter

Milena Dimitrova

An inspired writer and content manager who has been with SensorsTechForum since the project started. A professional with 10+ years of experience in creating engaging content. Focused on user privacy and malware development, she strongly believes in a world where cybersecurity plays a central role. If common sense makes no sense, she will be there to take notes. Those notes may later turn into articles! Follow Milena @Milenyim

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