In Windows 10, File Explorer is able to show small previews for image and video files you have stored on your disk drive. To speed up this process, it uses a cache file hidden in the user profile directory. When a file is cached, File Explorer reuses the thumbnail from the cache to show it instantly. If the cached file is damaged or corrupted, File Explorer starts showing broken or mismatched thumbnails for your files. Here is how to repair the thumbnail cache in Windows 10.
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