Windows 11/10 displays a file icon on the thumbnail. This is to indicate which application is set to open the file. Although it doesn’t show the icon on all files, you can find it on PDF and ...

If Microsoft Word icon is blank or missing ... Right-click on a DOCX file and select ‘Open with…’ option. Next, when prompted with ‘How do you want to open this file’ message, choose ...

You'll find the File Explorer icon by default in the Pinned section of the Start menu. You can click the app icon to open a ...