May or may not help in extreme cases where the file counts are in the 100 thousand and up in folders.
Hi folks! I'm hoping you can help with a weird problem. I have a lot of photos, graphics, and documents on my machine that need thumbnails, but Windows keeps deleting them. Sometimes it's after a day or two, sometimes it's right after reboot.
I've tried increasing the size of the thumbnail cache and also have turned off the automatic maintenance feature in the registry that periodically deletes thumbnails. I also tried completely reinstalling Windows from scratch. Nothing seems to make a difference. Any ideas?
Thanks in advance!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic