Invalid ms dos function windows 10 fix

Invalid MS-DOS Function comes up once you try to move, delete, copy or rename records. This is a file-mechanism error which commonly affects the file functionality just, but because it is extremely annoying it borders your consumption. The error can come up on Windows 10 and it’s predecessors (Windows 7, Vista, 8 and also 8.1). Methods defined in this overview will certainly work on all versions of Windows (stated above). Due to plenty of causes of this error, i have actually not uncovered a single deal with that works; for many type of users a mix and also enhance of fixes has actually operated which i have actually detailed in this overview. It would be finest to go through each strategy defined 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 utilizing Windows Vista / 7 then proceed to procedures below.

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


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

NTFS Files To FAT32 Format

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

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Edit System Policy via Registry

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

Navigate to the complying with path in the registry editor


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


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

Right click the newly developed value CopyFileBufferedSynchronousIo, and choose Modify

Type 1 in the value data box and also hit enter/ok. Then reboot your COMPUTER and test to check out if it works. If it still won’t work then procedure to Method 3.


Once the over has been modified, go to Command Prompt; and also copy the data to tough disk using the copy commands.

Run Chkdsk to CHECK DISK for Errors

Instructions for doing a chkdsk can be discovered at: here

By Kevin Arrows January 21, 2020
1 minute read

Kevin Arrows

Netjob-related Team Lead/Manager (LAN/WAN) |
Kevin is a dynamic and also self-motivated information technology professional, via a Thounstable expertise of all facets pertaining to netjob-related infrastructure architecture, implementation and administration. Superior record of delivering simultaneous large-scale mission instrumental tasks on time and also under budgain.

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Fix: Invalid MS-DOS Function Error

If the issue is through your Computer or a Lapheight you need to attempt making use of Restoro which can shave the right to the repositories and also relocation corrupt and also lacking documents. This functions in many instances, wright here the issue is originated because of a system corruption. You deserve to downfill Restoro by clicking the Downfill switch listed below.