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ManzanitaerHero's avatar
ManzanitaerHero
Iron Contributor
Dec 31, 2025

Default Apps Cannot Be Modified After Lossless Reinstallation of Windows 10

After performing a clean reinstallation of Windows 10, default applications automatically revert to their system-provided versions. Attempts to modify file associations have all failed, and using antivirus software configuration tools has proven ineffective. Seeking a solution.

2 Replies

  • AdrianPierce's avatar
    AdrianPierce
    Iron Contributor

    Right-click a file with the extension you want to change.

    Select Open with > Choose another app.

    Choose your preferred application.

    Check the box Always use this app to open .[extension] files.

    Click OK.

  • ThomasWhite's avatar
    ThomasWhite
    Iron Contributor

    After performing a clean reinstallation of Windows 10, default applications automatically revert to their system-provided versions. Attempts to modify file associations have all failed, and using antivirus software configuration tools has proven ineffective. Seeking a solution.

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