Windows deletes file extension associations

Posted May 25, 20201 min read

step:

  • Select the file extension to be restored to an unknown application, right-click and select Delete;

    HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ FileExts

  • Select the file extension to be restored to an unknown application, right-click and select Delete;

    HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ RecentDocs,

  • Select the file extension to be restored to an unknown application, right-click and select Delete;

    HKEY_CURRENT_USER \ Software \ Classes

  1. Restart the machine to take effect.