I really hate it when from time to time, Windows 10 automatically deletes the thumbnail for my pictures. I have thousands of pictures and all have been cached so that every time i open the folder, the images thumbnails will be instantly load up. After the latest Windows 10 - Fall Creators Update, Windows has add one special setting to automatically clear the cache from time time. I understand the logic behind this as thumbnail cache should be cleared off from time to time and if not removed, it will built up size taking a lot of hard disk space, especially most people nowadays uses SSD hard drives as storage is relatively very small. But i really do hope they can have an option or setting to set ON/OFF for this.