File Icon Preview Thumbnails Not Showing in macOS Finder? How to Fix

Most Mac users will be familiar with Finder’s ability to display icon previews for file types that it recognizes. The Finder icon for a JPEG image for example will show a small thumbnail-sized version of the image, which is useful for identifying the file without having to open it.
finder

If Finder doesn’t recognize an item (if it can’t be matched with an installed application that can open it) or preview icons are turned off then it displays a generic icon for the file.
finder

This function can be turned on and off in Finder -> View -> Show View Options by checking the box next to Show Preview Icon, but in some cases it may not work even if you have the setting enabled. If you find yourself in this frustrating predicament, there’s a fairly reliable method you can use that can quickly get it functioning again. The following steps show you how.

  1. Launch Activity Monitor on your Mac (Applications/Utilities/Activity Monitor).
    finder
  2. In Activity Monitor’s menu bar, select View -> All Processes.
    finder
  3. In the search field in the top-right corner of the Activity Monitor window, type com.apple.quicklook.ThumbnailsAgent and hit Enter.
  4. Select the process in the list, then click the Stop icon (the circled X) in the taskbar.
    finder
  5. Select Force Quit in the dialog prompt that appears.
    finder
  6. Next, click the Apple () symbol in the menu bar and select Force Quit….
  7. Select Finder in the Force Quit Applications list and click the Relaunch button.
    finder

After following the above steps, Finder will be relaunched and your icon thumbnail previews should be reinstated in Finder windows and on your desktop.

See also  How to Download Apple's iPhone 13 Mini Repair Manual
Hi, I'm Vikky Penn, currently working on msiu.info. This is my personal Blog, where I will share the tips and knowledge that I have learned. If you have any questions, please contact me at Email: [email protected]! Thank you !

Related Posts

How to reset iPhone 13 with 4 Easy Ways

How to reset iPhone 13 with 4 Easy Ways

Smooth, consistent operation and high hardware and software compatibility are two important aspects that contribute to the iPhone’s popularity. The fact that Apple’s smartphone models occasionally jerk,…

How to Turn Off ‘Time to Stand’ Reminders on Apple Watch

By default, Apple Watch periodically sends you stand reminders, but if you’re finding them annoying, there’s an easy way to turn them off from your wrist or…

How to Watch the ‘Peek Performance’ Apple Event on Tuesday, March 8

Apple is planning to hold its first media event of 2022 on Tuesday, March 8, at 10:00 a.m. Pacific Time through a live stream. The event is…

How to Add the Same App to Multiple Home Screens on Your iPhone

In iOS 15, you can put multiple copies of the same app on your iPhone’s Home Screen. On the surface, this may seem like a strange thing…

How to Use Universal Control and Sidecar Simultaneously in macOS 12.3

With the release of macOS 12.3, Macs provide support for two separate features called Sidecar and Universal Control that allow Macs and iPads to be used together,…

How to Adjust or Disable Universal Control on Mac

As of iPadOS 15.4 and macOS Monterey 12.3, Apple has introduced support for Universal Control, the long-awaited feature that’s designed to allow multiple Macs and iPads to…

Leave a Reply

Your email address will not be published.