Windows 10: Cannot change default program for some extensions

I cannot change the default "Open with..." program for some file extensions such as .mpeg or .mp4.
The "Open with..." dialog appears but there is no "Always use this app for .mp4 files" checkbox.

I can change the associations from the "Choose default apps by file type" settings page, but it is extremely annoying.


I am running Windows 10 version 1903 build 18362.175 (clean install from 2 days ago).


Any help would be appreciated, thanks in advance!

:)

 

Can a file extension(.flv) be added to Default Program Associations.

Hi Fred,



Thank you for posting your query on Microsoft Community.



I understand that you are facing issues associating a particular file extension with a program on Windows 10. I apologize for the inconvenience caused to you.

To assist you better, please provide the information:

When you say that "Default Program Associations", are you referring to the list of default applications in default programs settings?



I want you to be informed that all the file extensions is listed in the default program settings which is displayed under
Associate a file type or protocol with a program.



In default program list, all the programs or application will be listed. Then we can select each program as default program for opening a particular file.

I suggest you to refer to the below steps to make default program for a particular file extension.

1. Type "Control Panel" without the quotes in search box and click on it.

2. Click on Programs.

3. Then click on Default Programs and click on Choose Default for this Programs.

4. Select .flv file from the list.

Also you can try other steps to associate the a particular extenstion with the program.

1. Type "Control Panel" without the quotes in search box and click on it.

2. Click on Programs.

3. Then click on Associate a file type or protocol with a program
and search for .flv extension from the list.

4. Click on .flv and then click on Change Program.



Reply to us with the information, so that we can assist you better.

Let us know if you need any further assistance on Windows related issues and we will be glad to help.

 

Program Defaults

Hi Murad,

A recent change in the configuration of your device can be one of the factors why this issue occurs. To assist you with your concern, we recommend that you reset the default programs by associating the file type with a specific
program in the Control Panel. By doing this, you may able to view the file with the default program. To do this, follow the steps below:

• In the Search box, type Control
  Panel and press Enter.
• On the upper-right window, under View
  by, click Category and select
  Large icons.
• Click Default Programs.
• Click Associate a file type or protocol with a program.
• Find the extension or the file that you’ve downloaded.
• Double-click the extension to change the default program.

Let us know if the solution above works for you.

 

Chaning default program for URL:callto (Windows 10)

Hi Nathan,

Thanks for the reply.

If the default protocol that you wish to change is not available in the Settings app, you can use Control Panel to change the default programs in Windows 10.

Follow these steps:

• Open the Control Panel and click on Default Programs.
  
• Click on the option saying ‘Set Your Default Programs’.
  

Control Panel will find the installed apps and programs and display the list. You will see the list of installed program in the left pane and the right pane will contain a description of program, along with options that let you set the program as default
for files/protocols it can handle

• Select the program that you wish to set as default, and then click on ‘Set this Program as Default’. This will set the program as default for files and protocols.
  

To make further changes to files and protocols, click on ‘Choose Defaults for this Program’.

You will get a window that displays the list of file extensions and protocols registered by the program. Check the boxes against the files and protocols that you want the program to handle by default. Click ‘Save’ to return to the previous screen and
close the Control Panel.

You may also restart the computer for the changes to take effect.

Hope this helps.

Let us know if you got the help you needed by clicking ‘Yes’ or ‘No’.

Regards,

Srimadhwa B

Microsoft Community-Moderator