How to Fix ‘Filename Is Too Long’ Error in Windows 10

Having trouble with the ‘Filename Is Too Long’ error in Windows 10? Find out how to fix it in this article.

Understanding the Issue with File Name Length in Windows

If you encounter the ‘Filename Is Too Long’ error in Windows 10, it is likely due to the file name exceeding the maximum character limit allowed by the operating system. This issue can be frustrating, but there are several ways to fix it.

One solution is to use the Robocopy command, which is a powerful tool for copying files in Windows. Open a Command Prompt window and navigate to the directory containing the problematic file. Then, use the following command: robocopy source destination /MIR. This will copy the file to a new location with a shorter path, resolving the issue.

Another option is to use PowerShell, a command-line shell and scripting language. Open PowerShell and navigate to the directory with the long file name. Use the following command: Get-ChildItem -Recurse | Rename-Item -NewName { $_.Name -replace “problematicText”, “newText” }. Replace “problematicText” with the part of the file name causing the error, and “newText” with a shorter alternative.

If these methods don’t work, you can try accessing the file through an alternative file manager like Total Commander or Long Path Tool. These tools are designed to handle long file names and may allow you to rename or delete the problematic file.

Resolving the Issue: Simple Solutions and Workarounds

If you’re encountering the frustrating ‘Filename Is Too Long’ error in Windows 10, here are some straightforward solutions and workarounds to help you fix it.

1. Shorten the file path: One common cause of this error is a long file path. To resolve it, try shortening the folder names or moving the file to a higher directory level.

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2. Use the Command Prompt: Another option is to utilize the Command Prompt to rename or delete the file. Open Command Prompt as an administrator, navigate to the folder containing the problematic file, and use the appropriate command to rename or delete it.

3. Utilize third-party software: There are several third-party tools available that can handle long file paths and help you resolve this error. Some popular options include Long Path Tool and GS RichCopy 360.

4. Enable Long Path Support: Windows 10 has a built-in feature to enable long path support. To enable it, open the Group Policy Editor by typing “gpedit.msc” in the Run dialog box. Navigate to “Local Computer Policy” > “Computer Configuration” > “Administrative Templates” > “System” > “Filesystem” > “Enable NTFS long paths.” Double-click on it and set it to “Enabled.”

5. Consider renaming files: If you frequently encounter this error, it may be beneficial to review your file naming conventions. Shortening file names or using abbreviations can help prevent this issue in the future.

Remember, always exercise caution when modifying or deleting files, as it can have unintended consequences. It’s recommended to create backups before making any changes.

Enabling Long File Path Support in Windows 10

To enable long file path support in Windows 10 and fix the ‘Filename Is Too Long’ error, follow these steps:

1. Open the Start menu and search for “regedit” to open the Registry Editor.

2. In the Registry Editor, navigate to the following path: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlFileSystem.

3. Right-click on the “FileSystem” folder and select “New” > “DWORD (32-bit) Value”.

4. Name the new value “LongPathsEnabled” (without the quotes) and double-click on it to modify its value.

5. In the “Value data” field, enter 1 and click “OK”.

6. Close the Registry Editor.

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7. Restart your computer for the changes to take effect.

After enabling long file path support, you should be able to access or manipulate files with longer filenames without encountering the ‘Filename Is Too Long’ error.

Note: Enabling long file path support may cause compatibility issues with some applications or older versions of Windows. It is recommended to create a backup of your important files before proceeding with these steps.

If you still encounter the error after enabling long file path support, you can try using a workaround such as shortening the file or folder names, moving the files to a higher directory level, or using third-party software designed to handle long file paths.


robocopy "source_path" "destination_path" /E /R:0 /W:0 /XJ

Explanation of the command-line options used:
– `/E`: Copies all subdirectories, including empty ones.
– `/R:0`: Specifies the number of retries on failed copies. In this case, it is set to zero to avoid retries.
– `/W:0`: Specifies the wait time between retries, also set to zero to avoid waiting.
– `/XJ`: Excludes the junction points (symbolic links) from being copied, which can help prevent potential infinite loops.

Replace `”source_path”` with the actual path of the file or directory you want to copy, and `”destination_path”` with the desired destination path where you want the file or directory to be copied.

Keep in mind that the success of copying long file names will depend on the overall length of the file path, including the source and destination paths. If the combined length exceeds the maximum allowed length, you may still encounter issues.

Additional Methods to Copy or Move Files with Long Names

  1. Right-click on the file or folder with a long name that you want to copy or move.
  2. Select Rename from the context menu.
  3. Provide a shorter name for the file or folder.
  4. Press Enter to save the new name.
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Method 2: Use Command Prompt

  1. Open Command Prompt by pressing Win+X and selecting Command Prompt or Command Prompt (Admin).
  2. Navigate to the folder containing the file or folder with a long name using the cd command.
  3. Once in the folder, use the ren command followed by the old name and the new name to rename the file or folder with a shorter name.
  4. Press Enter to execute the command.
    Once in the folder, use the ren command followed by the old name and the new name to rename the file or folder with a shorter name.
Press Enter to execute the command.

Method 3: Utilize Robocopy

  1. Open Command Prompt by pressing Win+X and selecting Command Prompt or Command Prompt (Admin).
  2. Type the following command and press Enter to copy the file or folder with a long name to a new location: robocopy source_folder destination_folder file_name
  3. Replace source_folder with the path to the folder containing the file or folder with a long name.
  4. Replace destination_folder with the path to the folder where you want to copy the file or folder.
  5. Replace file_name with the name of the file or folder you want to copy.
  6. Press Enter to execute the command.
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