If the local KMS server fails to start, try the "Cleanup" button in the Activation tab and restart your computer. Surface IT Toolkit - Microsoft Learn
Because Microsoft Toolkit 2.5.1 is distributed through unofficial channels like Internet Archive or torrent sites, it carries significant risks: Microsoft Toolkit 2.5.1.
This article provides a deep dive into Microsoft Toolkit 2.5.1—its intended function, technical mechanisms, the severe security risks it poses, and the legitimate (and often free) alternatives provided by Microsoft itself. If the local KMS server fails to start,
Should I include a between this and newer tools like KMSPico? the severe security risks it poses