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#11
Ok, now enable 2 or 3 in turn and work backwards until the problem reappears. Thus you find which one (or ones) is (are) responsible.
It appears to be Sage Thumbs. With that one disabled I can open the folders but don't have a thumbnail view. I have not restarted my PC yet so maybe that will change.
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I restarted & I still have no thumbnails in that folder. All my other folders are okay. I moved them to another folder & still no thumbnails. However, I can view them with FastStone image viewer. I think I am going to call it a win.
I went through that whole procedure but still no thumbnails. Thanks for the suggestion.
Doesn't appear to have been updated since 2017...
SageThumbs - Browse Files at SourceForge.net
- which suggests it's not under development. Listed as compatible up to Win 8.1.
Glad you've found a cause.
Thank you for your help, dalchina. I learned so much from all of you in the past few days.