Invalid ms dos function windows 10 fix

Invalid MS-DOS Function comes up when you attempt to move, delete, copy or rename files. This is a file-device error which usually affects the file use only, but since it is very annoying it boundaries your consumption. The error have the right to come up on Windows 10 and also it’s precursors (Windows 7, Vista, 8 and also 8.1). Methods explained in this overview will certainly job-related on all versions of Windows (declared above). Due to many reasons of this error, i have actually not uncovered a solitary deal with that works; for many individuals a mix and also enhance of fixes has operated which i have actually detailed in this overview. It would certainly be finest to go via each strategy explained below and test after each method until it is solved.

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Optimize and also Defragment Your Drive

Hold the Windows Key and Press E. Choose This PC from the left pane if you are making use of Windows 10/8 or 8.1. If you are using Windows Vista / 7 then proceed to procedures below.

Right-click your Disk Drive and choose Properties. Then click the Tools Tab and choose Optimize (Windows 8/8.1/10) and also Defragment (Windows Vista/7) and also run it.


After the disk has been defragemented; reboot your device and also test.

NTFS Files To FAT32 Format

If you are copying files from a NTFS format to FAT32 Layout, then run the hotresolve listed below.

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Edit System Policy via Registry

Hold the Windows key and also Press R; then type regedit and also click OK

Navigate to the adhering to course in the regisattempt editor


Then, in the appropriate pane ; appropriate click and select NEW and select DWORD Value


In the value name field; type CopyFileBufferedSynchronousIo then push ENTER.

Right click the newly developed value CopyFileBufferedSynchronousIo, and also select Modify

Type 1 in the worth data box and hit enter/ok. Then reboot your PC and test to watch if it works. If it still won’t work then process to Method 3.


Once the above has actually been modified, go to Command also Prompt; and also copy the information to tough disk using the copy regulates.

Run Chkdsk to CHECK DISK for Errors

Instructions for doing a chkdsk have the right to be found at: here

By Kevin Arrows January 21, 2020
1 minute read

Kevin Arrows

Network-related Team Lead/Manager (LAN/WAN) |
Kevin is a dynamic and also self-motivated indevelopment modern technology expert, with a Thorough expertise of all facets pertaining to netoccupational infrastructure style, implementation and also management. Superior document of transporting simultaneous large-scale mission instrumental jobs on time and also under budobtain.

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Fix: Invalid MS-DOS Function Error

If the issue is with your Computer or a Lapheight you must attempt utilizing Restoro which can sdeserve to the repositories and also rearea corrupt and lacking documents. This works in a lot of cases, wbelow the worry is originated because of a system corruption. You deserve to downpack Restoro by clicking the Download switch below.