1. 74lobster's Avatar
    Hi, I'm Cesare and I type from Bologna (Italy) and I have a PC with the Windows 10 Pro Insider Preview - Build 21322.rs_prerelease.210220-1651 version installed.

    I made some changes to the system registry and now every time I want to launch an .Appx file, instead of opening and installing the application normally by clicking twice on it, an error window
    opens where I read "Interface not registered" with a Red X and obviously I can't install .Appx programs.

    How do you advise me to do?
    I don't know much about these things, maybe I should uninstall the application that manages the .Appx files with powershell and then re-install it, but I know little about these things,
    you should give me a detailed explanation, as long as you know how to fix the problem ....

    Thanks to all in advance.
    Autonomous Inc likes this.
    02-27-2021 10:02 PM
  2. me just saying's Avatar
    since you are using the insiders preview, it would be best to post in Microsoft own community. There are too many things different between the preview version and the version used by everyone else.
    T
    02-27-2021 11:53 PM

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