Invalid MS-DOS function appears on screen

Windows 10

Asked by: Mary LouiseTurner

Windows 10 was installed on my computer August 1, and I'm still trying to get the bugs out...I am trying to change names of files or delete those I don't need, but the pop up screen "Invalid MS-DOS function" appears every time.   What am I doing wrong, or is there something wrong with the system itself?  This is very irritating!

Answered by: Sahil Bali


Thank you for your interest in Windows 10.

You may try the following methods and check if it helps.


Method 1: Run the System File Checker tool (SFC.exe)

System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files. It will scan your system files and to repair missing or corrupted system files in Windows. To run the SFC scan, refer to the Microsoft article below.


Method 2:

Crete a new User account

To create a new user account, refer to the steps mentioned in the following Microsoft link:

Set up accounts

Hope this information is helpful. Please do let us know if you need further assistance with Windows, we’ll be glad to assist you.


Thank you

Sahil Bali
Files, folders, & storage 23/09/2015 0 Comment 255 views

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