<t>When you click Settings in the Windows Terminal it tries to open the .json configuration file in a text editor<br/>
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Since the .json file type isn't associated on your computer with any application, the "How do you want to open this file?" pop-up appears.<br/>
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Click on More apps and select any text editor (Notepad should be good.)<br/>
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Or rather update your Windows version as well as your Windows Terminal version (if it's not automatically updated with Windows) since nowadays the settings page is already updated not to be simply text editing a .json file:<br/>
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