Disabling Thumbnail Preview Creation in Vista When you view a file using Windows Explorer in Windows Vista, a thumbnail cache is generated automatically irrespective of the type of view that is enabled in the particular folder that you are currently in. This is done for all files, and it does not matter whether it is an image, a PDF document or a setup file. Typically, … [Read more...] about How To Turn On / Off, Enable / Disable Thumbnail Preview For Images, Videos, Pictures in Vista