You want to try Voidtools Everything, free, portable and requires no indexing. People who say they remember where they put things instead of searching basically have not tried Everything yet. I am OCD about file organization and have no trouble recalling where I put things but if a simple and fast tool like Everything allows me to get to a file more quickly than endlessly clicking to the bottom of a deep directory structure, the search tool wins. In fact, Everything is not a file search tool at all, but rather a list of your files and folders which it then filters to display only matching files. It supports regex queries and it's great for performing batch operations e.g. delete all thumbs.db files on all drives in one go. PS Download latest beta, it's not been updated for moths but it's very stable.