Fix Invalid MS-DOS Function file error on Windows 11/10

If when you lot endeavor to move, delete, copy or rename files/folders in Windows 11 or Windows 10 and you receive the Invalid MS-DOS Function error message,then this mail service might interest you. In this postal service, we will identify some potential known causes that tin trigger the error and and then provide the possible solutions you lot tin can endeavor to help remediate this upshot.

This is actually a file-arrangement error that frequently influences the file functionality only. You lot could feel the fault also if you lot try to move a file from an NTFS format drive to a FAT32 format drive and a corrupt system file can also trigger the fault.

Invalid MS-DOS Part file mistake

If you're faced with this Invalid MS-DOS Part issue, you can try our recommended solutions below in no detail order and come across if that helps to resolve the upshot.

1. Run CHKDSK
2. Shorten the proper noun of the file that you're copying
3. Optimize and Defragment your drive
4. Format the destination drive in NTFS format
5. Create and configure CopyFileBufferedSynchronousIo registry key.

Let'due south take a wait at the description of the process involved in relation to each of the listed solutions.

1] Run CHKDSK

Using CHKDSK is likewise one solution that is proved to be effective to fix the Invalid MS-DOS Office issue.

To run CHKDSK, do the following:

Press Windows key + R.

In the Run dialog box, type cmd and then press CTRL + SHIFT + ENTER to open Command Prompt in admin/elevated style.

In the command prompt window, type the control below and press Enter.

chkdsk /x /f /r

Y'all will receive the post-obit message:

Chkdsk cannot run because the volume is in use by another process. Would y'all like to schedule this volume to exist checked the next time the system restarts? (Y/Due north).

Press the Y key on the keyboard and then reboot your computer to let CHKDSK to check and fix the errors on the figurer hard drive.

Afterward CHKDSK completes, check to see if the effect is resolved.

2] Shorten the name of the file that you're copying

In this solution, merely shortening the file name could assistance resolve the error when you effort to motility, delete, copy or rename files/folders in Windows 10.

If this fix doesn't work, you tin can try the adjacent solution.

3] Optimize and Defragment your drive

You can utilise the Windows snap-in tool to optimize and defragment the hard drive on your computer. You can follow these steps to practise the job:

• Press Windows key + E at the aforementioned time to open File Explorer.
• Click This PC.
• Correct-click on the bulldoze and and then select Properties > Tools > Optimize > Optimize.

One time the procedure completes, restart your PC and check if the Invalid MS-DOS Function issue is resolved. If not continue with the next solution.

4] Format the destination drive in NTFS format

If the destination drive is not formatted as New Technology File System (NTFS), you may encounter the Invalid MS-DOS Function error. In this case, you tin convert the destination bulldoze to NTFS and see if that helps.

Here'due south how:

Converting a drive using these steps will preserve the files on the drive. We all the same recommend making sure you have backups of all files on the drive.

Find the letter of the drive you desire to convert. Open up File Explorer, and in the left pane, await for the drive nether This PC or Estimator.

Printing the Windows logo central + R to open the Run dialog box.

Type cmd and striking Enter to open up the command prompt window.

At the command line prompt, blazon the command below and hit Enter. Supersede the drive: placeholder with the actual letter of the alphabet of the drive.

convert drive: /fs:ntfs

One time the format procedure completes, try the file action again and come across if the upshot is resolved. If not continue with the next solution.

5] Create and configure CopyFileBufferedSynchronousIo registry cardinal

Some users said that they were able to resolve the Invalid MS-DOS Function issue by editing system policy in Registry Editor. Here's how:

Since this is a registry operation, information technology'southward recommended you back up the registry or create a System Restore Point in instance something goes wrong.

One time you lot take taken the necessary precautionary measures, you tin continue as follows:

Printing Windows key + R.

In the Run dialog box, type regedit and press Enter to open Registry Editor.

Navigate or jump to the registry key path below:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Arrangement

Right-click on the blank space on the right pane and and so select New > DWORD (32-bit) Value.

Rename the value proper name equally CopyFileBufferedSynchronousIo and hit Enter.

Double-click on the new value to open it.

Type 1 in the Value data box and press Enter to salve the change.

Y'all can now go out Registry Editor and restart your PC. On kicking check, if the result is resolved.

Whatever of these solutions should set the effect for you?

Source: https://www.thewindowsclub.com/invalid-ms-dos-function-file

Posted by: ramirezcating1942.blogspot.com

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