The "File Size Has Changed Outside of the File" error can be very frustrating. It usually pops up during a Windows installation and might indicate an issue with data integrity on the volume. But don't worry.

This guide will help you through it. We'll break it down into simple steps to get your computer back on track.

Recover Data from Disk Showing "File ChangedExternally" Error

It is recommended to scan and recover important files first to prevent data loss. In case of file system corruption, system crash, or accidental deletion, the reliable and powerful data recovery tool, tools Data Recovery Wizard, is suitable for you to use.

tools Data Recovery Wizard Pro offers a comprehensive solution to recover deleted files from various scenarios, ensuring the maximum recovery of your data.

    • You can use the tools Data Recovery software to create a bootable USB in WinPE when your computer fails to start.
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    • Its intuitive design facilitates a smooth and efficient data recovery process.

Note: To ensure the best chances of data recovery, do not install the data recovery utility on the same disk where you lost your files; install it on a different disk.

Step 1: Launch tools Data Recovery Wizard on your Windows 11, Windows 10, Windows 8, or Windows 7 PC. Select the disk partition or storage location where you lost data and click "Scan".

Select the disk to scan on Windows

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Select the type of data to recover

Step 3. Preview and recover lost Windows files. You can double-click to preview the scanned files. Then, select the target data and hit the "Recover" button to save them to another secure location on your computer or an external storage device.

Recover Lost Data in Windows 10

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Fix file volume changes made externally

When you try to copy or transfer files to an external storage device, like a USB drive or external hard disk, you may encounter the error “The external drive is modified.” The following solutions can help resolve the issue.

Method 1: Perform a Clean Boot

If you're having issues and haven't found a solution, it's worth trying this to troubleshoot. Here's how to perform a clean boot on your Windows system for diagnostic purposes.

Step 1: First, type msconfig in the Windows Taskbar search.

Step 2. Right-click the result and open "Msconfig" as an administrator.

Open the System Configuration

Step 3: In the System Configuration window, click on the Services tab.

Step 4: Check "Hide all Microsoft services" and then click "Disable All."

Select Hide all Microsoft services

Step 4. Switch to the "Startup" tab and open the "Task Manager."

5. In the Task Manager, disable all startup items, and then close the Task Manager.

Step 6: Restart your computer.

Performing a clean boot on your system is an effective way to resolve this issue. After doing this, try transferring the files again and see if the process goes through without triggering the error message.

Method 2: Reinstall the USB Controller

A USB controller is the medium through which communication takes place between a PC and a USB drive. When there's an issue with the USB controller, it might lead to errors regarding external modification counts. Sometimes, a USB device might show "No Media," display 0 bytes, or even trigger this error.

To resolve this issue, you can uninstall and then reinstall the USB controller.

Here is how it could work:

Step 1. Press "Windows + X" and click on "Device Manager."

Click the “Device Manager” option from the menu.

Step 2: In the Device Manager window, locate and expand the Universal Serial Bus Controllers category.

3. Right-click each controller in the list and choose Uninstall Device.

Select the device to uninstall

4. Restart your computer. The system will automatically reinstall the USB controller.

Step 5. Connect the external hard drive to your computer and verify that the controller is functioning properly. Try resuming the copy operation. If the issue persists, consider attempting other methods to resolve it.

Method 3: Disable Your Antivirus Software Method 3: Turn Off Your Antivirus Program

A Volume Shadow Copy error upon external file changes might also be triggered by your antivirus program, as it can be overprotective and interfere with the file transfer process.

To do this, depending on your antivirus software, go to its settings. Open your antivirus program and find the settings option.

Enter Settings

There should be an option in the settings to disable the antivirus. If you're unsure how to configure it, visit the official website of the antivirus software installed on your system for guidance.

Method 4: Perform a System Restore

If you've made it this far without a resolution, there are two possible explanations: a conflict within the software itself, or an underlying issue with corrupted system files that previous scans failed to detect.

To resolve this issue, you can use a System Restore point to return your computer to a previous stable state.

Follow these steps to run System Restore:

Step 1: Press the "Windows key + R."

Step 2: Type rstrui, and then press Enter.

Type rstrui

Step 3: Click “Next” to proceed to the next menu.

Step 4: First, check the Show more restore points box.

Step 5: Select the appropriate restore point, then tap Next.

Step 6: Click “Finish” to start the process.

This will restart your computer and load it into a state where it was previously, which may resolve the issue you're having.

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Repair Windows 10 with Command Prompt [SFC and DISM Commands]

How to Repair Windows 10 with Command Prompt [SFC and DISM Commands]

Do you know how to repair Windows 10 with Command Prompt? You can use two useful Windows repair commands - SFC and DISM. Read More>>

Method 5: Run the SFC and DISM Tools In this method, we'll use the built-in System File Checker (SFC) and Deployment Image Servicing and Management (DISM) tools to repair any potentially corrupted system files. Both of these utilities can help resolve "This app can't run" errors caused by issues with system files. **Step 1: Run SFC** 1. Press `Win + X` and choose "Command Prompt (Admin)" or "Windows PowerShell (Admin)." 2. In the Command Prompt window, type the following command and press Enter: ``` sfc /scannow ``` 3. The system will start scanning and repairing any issues it finds. This process may take some time, so be patient. 4. After it's done, restart your computer. **Step 2: Run DISM** If the SFC scan doesn't fix the problem, you can try running the DISM tool. 1. Reopen the Command Prompt (Admin). 2. Type the following commands, pressing Enter after each one: ``` DISM /Online /Cleanup-Image /CheckHealth ``` ``` DISM /Online /Cleanup-Image /RestoreHealth ``` 3. These commands will check and repair the health of the system image. The second command might require a connection to the Windows Update servers, so make sure your computer is connected to the internet. 4. After that, run the SFC scan again as in Step 1. 5. Restart your computer. If the issue persists after these steps, proceed to the next method.

The "External modification of file size error" typically occurs in Windows systems due to file corruption. This issue can be resolved by using the System File Checker (SFC) and Deployment Image Servicing and Management (DISM) tools on your computer.

For the SFC tool:

Step 1: Open the Command Prompt as an administrator.

Step 2: Type sfc /scannow, and press "Enter."

Type the command sfc /scannow and press Enter: Type sfc /scannow and press Enter

Step 3: Allow the scan to complete.

Run DISM:

< b > Step 1. < / b > Boot to the Windows Install CD and start "CMD".

Step 2: Type DISM /Online /Cleanup-Image /CheckHealth to check for corruption.

Step 3: Run the command DISM /Online /Cleanup-Image /ScanHealth to scan for corruption in the Windows image.

Step 4: Type DISM /Online /Cleanup-Image /RestoreHealth, and then press "Enter."

Input DISM Online Cleanup-Image Repair Health

Wait for the process to end, and then check if error 0x800703EE still occurs.

What causes a file size change due to an external modification?

"Volume for a file externally altered" is an error message indicating that a file on a specific volume has become inconsistent or been modified externally.

This also indicates that the file on the volume might have been modified or corrupted by an external source, and such issues should be addressed immediately to prevent data loss or system instability.

This issue occurs because:

    1️⃣ Corrupted installation files: Damage to the installation files during the Windows setup process can lead to changes in the number of files on the volume. 2️⃣ Disk issues: Problems with the disk structure or integrity might result in external modifications to files on the volume. 3️⃣ Virus or malware attack: Security threats, such as malware or viruses, can compromise the integrity of files on the volume, leading to external modifications. 4️⃣ Hardware failures: Faulty hardware components, like a failing hard drive or memory module, can cause external changes to files on the volume.

Conclusions

In summary, fixing the “The file or directory is corrupted and unreadable” error requires a comprehensive approach that takes into account various factors, such as file corruption, system issues, and external modifications.

In this guide, we explore various methods, from using tools Data Recovery Wizard for USB data recovery to troubleshooting issues related to USB controllers, antivirus programs, and system configurations.

This powerful data recovery tool not only helps you retrieve lost or damaged files, but also boasts a user-friendly interface, compatibility with various storage devices, and the ability to create a WinPE bootable USB for recovery from inaccessible volumes.

"Frequently Asked Questions" about "Changes Made Outside the File" Volume

See this extra information about errors regarding external changes to files.

1. What is the size of an external modification file?

This message typically indicates that the file has been modified or corrupted to the point where it can no longer be recognized as a volume. This issue could be caused by various factors, such as an abrupt disconnection of the storage device, software malfunction, or hardware failure.

< b > What does error code 0x800703ee on the SD card mean?< / b >

When you encounter error code 0x800703ee on your SD card, it typically indicates an issue related to copying or transferring files. This error usually occurs when attempting to copy files to or from the SD card. It often suggests a problem with the file system, the storage medium, or the copying process itself.

What is error 1006 in Robocopy?

Error 1006 in Robocopy occurs when there is an issue with permissions during the file copying process. Robocopy is a command-line tool used for copying files and directories in Windows. This specific error happens when access to or copying of a file is restricted due to permission limitations.