Windows 10: fixing icon thumbnails after setting new app to open with

I set my .gif to open with another app and it removed the thumbnail showing the gif. i tried cleaning the thumbnail cache and setting the display file icon on thumbnails to off and neither worked. i also tried creating a text file and renaming it to .exe, setting .gif to open with that file, then deleting it.

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Fix only half of files showing thumbnails & half showing icons

I might suggest: Uncheck "Display file icon on thumbnails" in explorer view options.

Open Folder Options in Windows 10 The issue seems to be file extension jpeg and not jpg so check file associations for both and if different set default program for jpeg to whatever you're using for jpg.

Choose Default Apps in Windows 10

 

Fix only half of files showing thumbnails & half showing icons

Thanks for your suggestions. I tried these... Clear and Reset Thumbnail Cache in Windows 10 and consider increasing the cache size: Change Icon Cache Size in Windows 11 and 10 but no change. I already has this setting... Uncheck "Display file icon on thumbnails" in explorer view options. No change. Did this... Choose Default Apps in Windows 10 and set default as Viewprint as always but no change - still only half of files showing thumbnails & half showing icons!!! Very frustrating!!! I hate opening a folder & seeing this!! Anymore ideas please??

 

Invisible windows app icons and lost thumbnails.

I had some invisible icons on my taskbar (not all of them, seems to be only windows apps) and I tried an online fix which suggested deleting the icon cache. However, this didn't work and now I have no thumbnails for any of my files so I can't tell what anything is. Very frustrating so would appreciate any help.