: Once prompted, restart your computer to apply the changes.

The tool also provides a fix for the WAT, which prevents Microsoft from detecting the activation bypass.

"Windows Loader 2.2.1 by DAZ" is an unofficial software tool developed by a programmer or team known as "Daz" to activate certain versions of the Microsoft Windows operating system without a genuine, purchased license key. It was created to bypass Microsoft's Windows Activation Technologies (WAT), which verifies that a copy of Windows is properly licensed.

WAT periodically checked the integrity of the operating system's activation files. If it detected a modified bootloader or an injected SLIC table, it would flag the operating system as non-genuine. This resulted in a black desktop background, persistent nag screens, and restricted access to certain personalization features.

In February 2010, Microsoft released a security update known as , aimed squarely at detecting activation exploits like BIOS emulators. This update introduced enhanced capabilities to Windows Activation Technologies (WAT).

It stopped the KB971033 service from running or communicating with Microsoft's servers.

Are you trying to activate a specific version of Windows 7, like Ultimate or Pro?

The core mechanism involves injecting a into the system before Windows itself starts up. The SLIC is a data structure that original equipment manufacturers (OEMs) like Dell, HP, or Lenovo embed into a computer's BIOS to pre-activate Windows. By emulating an OEM BIOS, the loader makes the Windows operating system "think" it is running on a genuine, pre-activated OEM computer, thereby bypassing the normal activation process.