1. Open "Computer", enter the menu "Tools" → "Folder Options" → "File Types", click "New" to pop up the "New Extension" dialog box, select "File Extension" "Fill in "exe" in the box, then click "Advanced", select "Application" in the "Associated File Types" drop-down box, click "OK" to return, and finally click "Apply" to close the dialog box < /p>
2. If the above method cannot solve the problem, or the application button is grayed out, you can restart and press f8 to select "Command Prompt Safe Mode", and then enter assoc .exe= directly at the command prompt. exefile or ftype exefile=%1%* and press Enter.