I was going to suggest Windows explorer as well. Are you familiar with limiting the search with to document properties? For example "Author:Rohde" would fine documents with me as the author in the document properties.
It has some pretty robust search capabilities once you learn the advanced searching techniques.
Windows has a built in file explorer application that you can use to search for any keyword found in the title of that document or app. However if you have administrator restrictions on your account and the file is a "hidden file" you may not have access to search for that item.
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