Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
X1 Search - X1's Lightning-Fast Search Software. Premium Alternative to Windows Desktop and Outlook Search.
LightShot - The fastest way to take a customizable screenshot.