Windows 10: No Thumbnails on Task Bar

The software in questions is Adobe Acrobat DC.

:)

 

Cannot modify Task Bar settings

Hi,

Thank you for posting in Microsoft Community.

I understand your concern and will be happy to assist you.

I suggest you to follow the steps below and check if the issue persists.

• Right click on the Task Bar.
• Uncheck the option " Lock the Taskbar."

Hope this helps.

 

Thumbnails and task bar icons not displaying

Since the last Windows 10 update my thumbnails do not display. Some flash on when a folder is opened but then revert to an icon. I've already tried clearing cache and trying different programs to open the files. Also the folders containing thumbnails are
now slow to open.

Some icons on the task bar are not displaying, for example Edge. Its there but no icon. Removing it and then reinstating to the task bar has the same effect.

 

Task view thumbnails

At least we got a progress after performing a clean boot. Now, since there are instances that the thumbnails are still disappearing, then this may have something to do with the thumbnail cache. So, here's what to do next.

Follow the steps below to recreate the thumbnail cache using Disk Cleanup:

• Open File Explorer.
• Click This PC on the left pane.
• Right-click the C: driver where Windows 10 is installed and select Properties.
• Next, click Disk Cleanup.
• Uncheck all the boxes, then check the Thumbnail box only.
• Click OK, then click Delete Files to confirm and to complete the task.

After that, you should be able to browse files and folders on your computer with thumbnail previews showing up correctly.

Let us know if this goes well for you.