Files/Folders Disappeared from an External Hard Drive? How to Fix?

💡 This article is written by humans, with all solutions and steps verified.

I have a 24TB Seagate external hard drive. The whole folder just disappeared, with the rest of the storage unchanged, when I tried to transfer one of the documents to my computer. Is there any way to find it?

by Daniel Sams

In fact, files or folders disappearing from an external disk in Windows 10/11 or Mac is a common issue. Though it’s stressful and can leave people worried about permanent data loss, there are always solutions available, whether on Windows or Mac. If you’re facing the issue, please read on.

Table of contents
Must-Dos Before Troubleshooting Files in the External Hard Drive Disappeared
How to Show Files/Folders Disappeared from an External Hard Drive
How to Recover Files on the External Hard Drive That Have Disappeared
Tips for Preventing File Loss on the External Hard Drive
Summary
FAQs

Must-Dos Before Troubleshooting Files in the External Hard Drive Disappeared

In most cases, files that are missing or cannot be displayed on the external hard drive don’t mean they've been erased. Instead, there must be a problem with logical access. In other words, these data still exist, but the file system hides them or places them in a different directory. In this case, before you try the solutions below, please take the following steps.

  1. Sometimes, files disappear from the external hard drive because they were moved to a different directory by mistake. Therefore, you can search on your computer to locate all files in a specific format, such as entering "jpg". Perhaps they are on that list.
  2. If there are still visible and accessible files on the external disk, copy them to another storage device immediately to prevent data loss or corruption during the troubleshooting process.
  3. Lastly, accidental deletion is another reason for files on the external hard drive to disappear. Though it happens rarely, it is possible. Therefore, to avoid them being overwritten, do not save new files to the external hard drive. What’s more, if the issue occurred after connecting the disk to a Mac, check the Trash to see if the files are there.

How to Show Files/Folders Disappeared from an External Hard Drive

While there are many reasons causing files or folders on the external disk to disappear, there are ways to address the issue. Below, our technical team has compiled a list of solutions that you can try.

Method 1: Check your External Hard Drive for Viruses or Malware

External hard drives are frequently used across different computers, making them very easy to infect with viruses or malware. They will alter file attributes without your notice, causing files to be hidden. That’s the reason you should scan the external hard drive with antivirus software first.

Method 2: Display Files on an External Hard Drive Disappeared with the Computer's Built-in Features

Most of the time, the missing files are still on the external hard drive, but they disappear because their attributes were changed due to incorrect settings. The file system marked the changed files as hidden files. To view them again, you need to unhide them.

Show Files/Folder Disappeared on the External Hard Drive in Windows 11/10:

  1. After connecting your external disk to the computer, open the directory where the disappeared file or folder was located.
  2. Click the "View" tab on the top toolbar, select "Show," and ensure that "Hidden items" is checked. If you are using Windows 10, it is located in the "View" tab.

Show Files Disappeared from an External Hard Drive on Mac:

Open Finder and go to the directory where the missing files from the external hard drive were located. Press "Command", "Shift," and "." three keys. All hidden items will reappear with a semi-transparent appearance.

Method 3: Use Commands to Find External Hard Drive Files Disappeared

If files on the external hard drive are still missing after you changed the system settings mentioned above, then it is very likely that their attributes have been set to hidden at a higher level. In this case, it’s better to show hidden files or folders on the external disk with command lines.

For a Windows PC:

  1. Please press the "Windows" + "S" keys, and then type "CMD" into the search box.
  2. Find the "Command Prompt" on the results page. Then, click "Run as administrator" to open it.
  3. In the command line window, type "attrib -h -r -s /s /d [external drive letter, e.g., "F"]:\*.*" and press Enter.

For macOS:

  1. After opening Finder, go to the "Applications" > "Utilities" folder. Then find the Terminal app and double-click it to open.
  2. Finally, type the following commands in sequence and press Enter:
    defaults write com.apple.finder AppleShowAllFiles -bool true
    killall Finder

Method 4: Modify the "CheckedValue" Registry to Reveal Files in the External Hard Drive Disappeared (Windows only)

CheckedValue is a DWORD registry value in Windows that controls whether hidden files are displayed. When it is 1, it will reveal hidden files. While 0 locks the settings to prevent unauthorized changes. Checking and changing the CheckedValue is an alternative solution if the aforementioned commands fail to remove the hidden attribute from the files on your external hard drive.

  1. Create a new text document, copy the following content, and save it.
  2. Finally, type the following commands in sequence and press Enter:
    Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL] "CheckedValue"=dword:00000001
  3. Change the created file extension to ".reg" and double-click the file to confirm the changes.
  4. Restart your computer to see if the missing files on your external hard drive have shown.

Method 5. Use the Built-in Repair Tool of the Operating System

Files on an external hard drive may also disappear due to file system errors, such as lost file indices, corrupted boot records, bad clusters, or bad sectors present in the device itself. Coincidentally, CHKDSK in Windows or First Aid on Mac can detect and repair these issues, showing the disappeared files again.

For Windows:

  1. Run Command Prompt as an administrator.
  2. Type "chkdsk #: /f /r" (# is the drive letter of the external hard drive) and press Enter.

For Mac:

  1. Go to Applications > Utilities > to locate "Disk Utility".
  2. Select your external disk from the sidebar in Disk Utility, then click "First Aid" in the top menu bar.
  3. Lastly, click "Run" to check and repair any potentially damaged file systems.

How to Recover Files on the External Hard Drive That Have Disappeared

If the methods above still fail to reveal the files that have disappeared from your external hard drive, the last possibility is that they were deleted without your notice.

Fortunately, when the deletion is carried out, the operating system doesn’t erase the files. Instead, it marks the file headers as deleted and removes the corresponding index entries from the directory list. It is precisely because these files lack the necessary reference information that they become unrecognizable and appear to have vanished from your external hard drive. In this case, there are two solutions. Choose the one that’s right for your situation.

Option 1: Use Data recovery software for Windows or Mac

As previously mentioned, even if some files on an external hard drive have been accidentally deleted, they still remain on the drive. Without a backup, the quickest and most effective solution is to use data recovery software to scan the drive's sectors directly, locating and restoring these files that are no longer indexed.

If you do not have such a tool installed on your computer, we recommend you try iBeesoft Data Recovery. It is simple to use yet powerful, allowing you to achieve unexpected results even in complex data-loss situations.

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Recover Disappeared Files from An External Hard Drive on Windows PC:

  1. Download iBeesoft Data Recovery and install it on your computer by following the built-in instructions.
  2. Connect your external disk to the computer.
  3. Launch the program, then select your external hard drive from the storage device list and click the "Scan" button that appears.
  4. Once the scan is complete, you will see a list of recoverable files. Select the missing ones and click the "Recover" button to save them.

Recover Files/Folders Disappeared from External Hard Drive on Mac:

  1. Download and install iBeesoft Data Recovery for Mac. After that, launch it.
  2. Select your external hard disk from the devices list and click the "Search for Lost Files" button.
  3. Wait for the scan to complete, then preview the files found by the software. You can narrow the results by selecting the corresponding file type in the sidebar if you want to recover a specific file type.
  4. Select the files you wish to restore and click the "Recover" button.
  5. Choose a location to save them and click "OK".

Tip: These steps can also help you recover deleted files on a Mac.

Option 2: Apply Data Recovery Services

If all other methods don't work or you prefer not to handle the process yourself, the last resort might be to ask a data recovery service for help. To do this, simply search for a local provider and book a consultation.

Tips for Preventing File Loss on the External Hard Drive

No matter how excellent or simple a solution may be, it ultimately serves only to remedy a past mistake. To fundamentally prevent such errors from happening again, please follow the suggestions below.

Summary

As you can see, when files or folders on an external hard drive disappear, you should first check system settings and then run CHKDSK or First Aid to rule out file system errors. These simple ways often resolve the issue. If they fail to work, then you should consider using data recovery tools or services to retrieve lost files. We’re sure you will successfully recover missing files. Last, prevention is always the best approach. Therefore, please take a moment to read our suggestions and put them into practice.

FAQs

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