Very slow response in Windows Explorer

I'm not sure how to disable thumbnail caching for just one folder. I've disabled entirely like this:

Thumbnail Cache - Enable or Disable

But take a look at the links below that article and maybe try this:

Thumbnail Cache - Clear and Reset

If you clear the thumbnail cache folders containing images will initially be slower to open but once the cache has been rebuilt it should get faster.

Here's a quick test.

Navigate to your problem folder and open it then click Tools> Folder Options and set them like this:



You will see icons rather than images. If it then opens faster it might be time to scan the folder for corrupt images or possibly even use a different image viewer.