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Images on desktop not showing thumbnail preview. Suggestions?

I have a MacBook Air and a MacBook Pro. Both suddenly have turned all desktop thumbnail previews to blank white images. How do I get them to return to showing the thumbnails?

David


MacBook Air 13″, macOS 10.12

Posted on Nov 24, 2020 6:15 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 24, 2020 6:19 AM

davidfield1900 wrote:

I have a MacBook Air and a MacBook Pro. Both suddenly have turned all desktop thumbnail previews to blank white images. How do I get them to return to showing the thumbnails?
David


Did you try rebooting?


To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot as normal and test as caches get rebuilt.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

This will tell you if it a universal issue or isolated to your user/admin account. 



1 reply
Question marked as Top-ranking reply

Nov 24, 2020 6:19 AM in response to davidfield1900

davidfield1900 wrote:

I have a MacBook Air and a MacBook Pro. Both suddenly have turned all desktop thumbnail previews to blank white images. How do I get them to return to showing the thumbnails?
David


Did you try rebooting?


To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot as normal and test as caches get rebuilt.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

This will tell you if it a universal issue or isolated to your user/admin account. 



Images on desktop not showing thumbnail preview. Suggestions?

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