It includes a diagnostic tool to verify the validity, edition, and origin of any entered product key (e.g., Retail, OEM, or Volume License).

If you must use an activator, modern open-source alternatives (like MAS) are generally considered safer because the code is visible and audited.

Microsoft Toolkit tricks your PC into thinking it is part of such an enterprise network. It installs a on your local machine (or uses an external server) and activates Windows/Office for 180 days. The toolkit then installs an auto-renewal task that re-activates the product before the 180-day period expires—creating an effectively perpetual activation loop.