How to fix 0x800704C8 error when copying files on Windows?

Question

Issue: How to fix 0x800704C8 error when copying files on Windows?

Hello. I'm having a problem with my Windows. When I try to copy a file from a hard disk to another, I get a message saying that the file is in use. I tried to log off and log in again and do the same thing and nothing changes. I have run out of ideas about what could be causing this. Looking for any tips.

Solved Answer

Windows has thousands of processes running in the background keeping the system running smoothly. If one of those processes goes rogue, users can experience issues when trying to perform certain tasks. The operating system has many built-in troubleshooters for different types of processes in the machine but even they are sometimes helpless and leave users frustrated because they have to go looking for solutions themselves.

Sometimes users randomly receive an error when trying to copy a file. The full message in the pop-up says:

An unexpected error is keeping you from copying the file. If you continue to receive this error, you can use the error code to search for help with this problem.

Error 0x800704C8: The Requested operation cannot be performed on a file with a user-mapped section open.

As you can see, the error says that users should be looking for a way to resolve the problem themselves. It can be very frustrating when you have trouble performing the most basic tasks in your machine and you do not know what could fix it.

This error usually appears because of a lack of permissions or if a third-party application is interfering with the action. More complicated things that could be causing it could be missing file ownership, administrator privileges, or when the system files are damaged or corrupted.[1] We provide solutions to all of these problems in this article.

How to fix 0x800704C8 error when copying files on Windows?

Troubleshooting manually could take a while because it is unclear what exactly is causing the issue, so you can try using an automatic solution ReimageMac Washing Machine X9 to avoid going through all of the possibilities. The repair tool can identify the damaged system components, fix BSODs, and registry[2] issues by scanning the system. This software could also be used to free up space by clearing cookies and cache,[3] which should boost the device's performance.

Below you will find a few manual methods that could fix the 0x800704C8 error when copying files and let you perform basic tasks without trouble again. Note that this will take a while, so please follow all of the steps very carefully:

Solution 1. Run File and Folder Troubleshooter

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Download the File and Folder troubleshooter from the official Microsoft page
  • Click to open the tool and then in the File and Folder Troubleshooter window, click on Advanced
  • Check the box next to Apply repairs automatically and click Next

Run File and Folder Troubleshooter

  • Select the problem you are facing and press Next
  • After the scan, try performing the action again

Solution 2. Disable Antivirus Software

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Disable Antivirus Software

If you have any third-party antivirus software installed on your system, you should try disabling it and then giving the copy-paste action a shot. In case you are successful with the antivirus software disabled, it’ll become obvious that the issue was caused by it. In such a scenario, it is best to just uninstall it.

Solution 3. Take ownership of the File

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Right-click on the file or folder you want to take ownership of, go to the Security tab
  • From Groups and other users check if you have permission
  • If not, select the User and click Edit

Take ownership of the File

  • Tick Allow of Full Control
  • Try copying the file now

Solution 4. Repair corrupted files

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Use Command Prompt commands to repair system file corruption:

  • Open Command Prompt as administrator
  • Use the following command and press Enter:
    sfc /scannow

Repair corrupted files

  • Reboot your system
  • If SFC returned an error, then use the following command lines, pressing Enter after each:
    DISM /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth

Solution 5. Run Visual Studio as an administrator

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

If you’re encountering this issue while attempting to move a file that is currently part of a Visual Studio project, the program might be lacking the required administrative permissions to move files freely while the project is loaded:

  • Ensure that Visual Studio is closed and no associated process is running in the background
  • Open My Computer or File Explorer and navigate to the location where Visual Studio is located
  • Usually, it is in the following path:

C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\{editionName}

  • Right-click on VisualStudio.exe and then click on Properties from the menu

Run Visual Studio as an administrator

  • Access the Compatibility tab from the ribbon menu at the top
  • Move down to the Settings category and check the box associated with Run this program as an administrator
  • Click on Apply to save the changes

Solution 6. Reset every Windows Component

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Open Command Prompt as administrator again

Reset every Windows Component

  • Copy and paste the following commands, pressing Enter after each:
    net stop bits
    net stop wuauserv
    net stop appidsvc
    net stop cryptsvc
    Del “%ALLUSERSPROFILE%\\Application Data\\Microsoft\\Network\\Downloader\\*.*”
    rmdir %systemroot%\\SoftwareDistribution /S /Q
    rmdir %systemroot%\\system32\\catroot2 /S /Q
    regsvr32.exe /s atl.dll
    regsvr32.exe /s urlmon.dll
    regsvr32.exe /s mshtml.dll
    netsh winsock reset
    netsh winsock reset proxy
    net start bits
    net start wuauserv
    net start appidsvc
    net start cryptsvc
  • Restart your PC

You might also be interested in these topics:

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Recover your lost files quickly

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About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate computer expert

Gabriel E. Hall is an expert troubleshooter who has been working in the information technology industry for years.

Contact Gabriel E. Hall
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