Windows 10: Can't change default app for .dat file extesnsion.

Discus and support Can't change default app for .dat file extesnsion. in Windows 10 Customization to solve the problem; Dear support team, I am trying to open .dat files but it is set to open with Power Media player for Dell. I tried to change it to notepad but it does... Discussion in 'Windows 10 Customization' started by Rabinchand, Jul 4, 2019.

  1. Can't change default app for .dat file extesnsion.


    Dear support team,


    I am trying to open .dat files but it is set to open with Power Media player for Dell. I tried to change it to notepad but it does not give me the option to choose it. I even uninstalled that application but when i try to set up the default app it ask me to goto m-store when i already have a notepad. Any suggestions?


    Thank you

    Rabin

    :)
     
    Rabinchand, Jul 4, 2019
    #1

  2. Can't change default program to open files.


    Hi,

    I'm trying to change the default program for .dwg files from Autocad to Draftsight.

    I already tried:

    • right click > open with > choose another app > always use this app. The file opens in Draftsight without problems, but it still opens with Autocad the next time you double click a dwg file.
    • settings > apps > default apps > choose default apps by file type. This also does not change the default method to Draftsight.

    When I type assoc .dwg in command prompt, it shows ".dwg=DraftSight.Drawing"

    I see some suggestions to try using the old interface through control panel, but it seems like control panel routes to the new interface.

    I also tried changing the association for .txt files from notepad to notepad++ and it doesn't work either.

    Any ideas?

    Thanks.
     
    petersteele, Jul 4, 2019
    #2
  3. Windows 10 1803 default app change bug

    When right clicking a file and going to "Open With", no matter what file it is, I can't change its default. The box is checked, and the app doesn't change.

    This is also true of right clicking and going to "Properties". When I click change, the default doesn't change.

    This is happening to me on 3 computers now. Steps to reproduce? I could probably do it by:

    Installing Windows 8.1, and upgrading to 10 with the media creation tool.

    This does not happen with a fresh install from a USB with Windows 10.

    Don't tell me to go to "Settings" and change the defaults. The file type list is horrible, and some of my file types are not listed. The registry is not an option on multiple PCs as it is not just one file type. It is ALL file types. No matter what one I
    try, it's always the same result.

    Are there any suggestions? I know how to navigate computer, so please do not suggest that I need to go to Settings

    > Apps > Default Apps. These options are far from optimized, and they don't have what I need. There isn't even an option to browse for an app to select defaults for when the app doesn't show up in the list.

    A quick fix would be nice. Even a simple item in the registry? I could potentially have this problem on all 75 computers in this building as they all started at 8.1 before going to 10. I can't reinstall Windows on every machine. That's ridiculous.
     
    Abraham Hadley, Jul 4, 2019
    #3
  4. Can't change default app for .dat file extesnsion.

    Windows10 Keeps Changing my Default Apps

    Hi Carol,

    There is a certain option in Settings where you can change the default apps for a specific file type. For example, your .psd file can be opened by a certain app as a default while the other file types can be opened by a different app. You can manually change
    it by following these steps:

    • Press Windows key + I.
    • Select Apps, and then Default apps.
    • Select Choose default apps by file type.
    • From there, scroll down to the file type that you want to change the default app.

    Feel free to contact us if you need assistance with Windows.
     
    Dennis Mop, Jul 4, 2019
    #4
Thema:

Can't change default app for .dat file extesnsion.

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