Thumbnail Previews
In Windows, thumbnail previews are useful for quickly viewing the contents of files, especially images and videos, without opening them. Here’s how to enable or troubleshoot thumbnail previews: 1. Enable Thumbnail Previews in File Explorer Open File Explorer . Click on the View tab. In the Options group, select Options (far right) and then Change folder and search options . In the Folder Options dialog, go to the View tab. Ensure Always show icons, never thumbnails is unchecked . This setting enables thumbnails. Click OK to apply. 2. Clear and Rebuild the Thumbnail Cache Sometimes the thumbnail cache can become corrupted, causing previews not to show correctly. Open the Start Menu and type Disk Cleanup . Select your drive (usually C: ) and click OK . Check Thumbnails in the list and click OK to clear them. Restart your computer, and Windows will rebuild the thumbnail cache. 3. Enable Thumbnails for Specific File Types Certain file types may not show thumbnails by default. To ...