We donâ€™t really know when a new fileâ€™s sit on our computer. There are possibilities to think the file can be a virus. WhatisThatFile is a free online web tool which helps you to identify any unknown files on your computer.
This tool doesnâ€™t cover all of the file types but still covers most of them. You can even add when you find a new file on your computer to the list which will help other users who visit this web site.
Results will appear immediately as you type.
type – thumbs.db, you get the result as
Windows XP/2003 Picture Thumbnails Cache
Generated by Windows to cache the thumbnails of pictures in the parent folder.
This file is usually safe.