It modifies registry entries and system files to trick the OS into believing it is in a "trial" or "genuine" state permanently. Functionality Retention:

: Using these tools to authorize pirated copies of Windows violates the Windows license agreement and is considered illegal in many jurisdictions. Google Groups Safer Alternatives

: Developers of the tool claim it allows the system to receive official Windows updates, though this can vary by version and Microsoft's current detection methods. Critical Risks and Safety Concerns