The download is a self-extracting archive containing a command-line script ( .cmd ) and Group Policy templates ( .admx / .adml ). Microsoft Edge Chromium Blocker Toolkit - Download
It prevents Windows Update from force-installing Edge on Windows 10 (version 1803 and newer).
The toolkit does not block users from manually downloading and installing Edge from the web.
You can download the official executable from Microsoft's distribution servers: MicrosoftEdgeChromiumBlockerToolkit.exe.
It does not affect systems managed via Windows Server Update Services (WSUS) or Windows Update for Business (WUfB), as these environments are already controlled by IT administrators. How to Use the Blocker Toolkit