Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
Advanced Recent Access - Advanced Recent Access is designed to see more properties of your recent used resources (files and directories). Key features: can see more properties of the recent resources, such as path, size, type, date modified and date created. And more.
Recoll - Recoll is a desktop full-text search tool. Recoll finds keywords inside documents as well as file names.
X1 Search - X1's Lightning-Fast Search Software. Premium Alternative to Windows Desktop and Outlook Search.
Anytxt Desktop Search - Anytxt is Desktop Search Tool with A Powerful Full-Text Search Engine.