If an update is available, it will be displayed. Step 4: Wait for your Mac to scan for the latest update. Step 3: You will now see a pop-up window with the details about your Mac. Step 2: Select the About This Mac option. Upgrading to the latest version of macOS can fix these issues. Some versions of macOS may have bugs that can cause apps to crash or not function properly. Step 1: Click on the Apple logo on the top-left section of your screen. In case you’re not aware, here’s how to restart your Mac. Just close all the apps on your Mac and restart it to see if it makes any difference. This is the simplest solution to most common problems, and it works most of the time. Relaunch the Preview app now and see if it works fine.

Step 3: Select the Preview app and then click on Force Quit. Step 1: With the Preview app open in the background, click on the Apple logo on the top-left section of your screen. If the Preview app is not responding or not loading your images, force-quitting it and reopening the app might help. Step 4: If you don’t see the option, select Hide Preview and then go back to the same menu and select Show Preview. Step 2: Click on View on the menu bar at the top. Step 1: Open a Finder window on your Mac. The Preview pane was probably disabled, and here’s how you can turn it back on. This is the first thing you can try if you’re can’t see the thumbnails of the images you select on Finder. Here are six ways you can fix Preview not working on your Mac. A few solutions can help you fix this problem and get Preview to function the way it is supposed to. The Preview app fails to load thumbnails for images or won’t open an image. However, this feature fails to work at times.

Mac photo preview not working