Windows 7 Loader is an activation software used to license Windows 7 versions (such as Ultimate, Professional, and Home) without a purchased retail key. Developed by "Daz," a prominent figure in the software modification community, the tool works by injecting a into the system before Windows boots.

Because the official Team DAZ site no longer exists, many "download" links found today are bundled with Trojans, miners, or adware.

The 2.2.2 release was the final and most stable iteration of the tool. Its popularity stemmed from several core features:

It supports both 32-bit (x86) and 64-bit (x64) systems.