I have been experiencing one slow loading folder in Windows 7 lately which took me ages to figure out why it was happening and how that folder could be fixed so that it would display its contents right away. The folder was my download folder where all downloads from the Internet where placed in. It grew to a size of roughly 250 Gigabytes of data with all file types present: videos, photos, documents, programs and music. I first assumed it was simply to big or that the many files and subfolders inside would be the cause of the loading animation in the location bar. But deleting files and folders did not fix the problem.
There were other possibilities of which I explored all but none fixed the problem. This included antivirus software, shell extensions, the view mode or thumbnail caching. Then I read an article over at Addictive Tips about speeding up Windows 7 folder loading time. The explanation given in the article did not describe my problem but the solution fixed it.

I checked the folder properties after reading the article to see how this folder was optimized in Windows 7. It was set to pictures. I changed that value to videos and placed a checkmark in the “also apply this template to all subfolders” checkbox. (it also worked changing it to general items and documents with general items probably the best choice.
The result was incredible. The folder contents where displayed right away without loading time. I reverted the settings only to experience the slow loading folder contents once again.
It is safe to assume that this is some kind of caching gone wrong. I’m not sure why it was set to pictures in first place but this is the cause for the slow loading folder.
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Thanks!
Works for me. I was having problems with slow folder shares from my home file server.
This solution fixed it for me, and I thought I had a bad drive, starting to fail, etc….
Load off my mind, many many thanks!
Jeff-
Great. Worked for me, too. Was already on ‘Video’ so changed it to ‘General’, ticked the box & was away … :)
Wish I’d known about this fix long ago – I’ve suffered on previous computer ….
Thanks! Great Tip.
Worked for me, thank you!
Thanks for your great tip. It solved a lot of frustrations.
Thanks… It’s works….
Thanks, this has been bugging me for months, but this solves it. Incredible that even the My Pictures folder should be optimized for Videos instead of Pictures for proper displaying in Windows Explorer!
Fixed my problem as well – folder with 400gb of mp4 videos with filetype set to video was painfully slow to load. Changed to general, and boom! fixed!
Thanks for the tip
Thank you for this tip.
It solved my problem in Windows XP,
Thanks for posting. Fixed my problem.