deGDID: A Tool to Strip Microsoft's Hidden Device ID

Deletes all instances of Microsoft's GDID and prevents minting of new ones

Microsoft's Global Device Identifier (GDID) is a server-assigned tracking ID that Windows can mint even for local accounts. The open-source tool deGDID removes existing GDIDs and blocks the DeviceAdd path, preventing new ones. It targets unmanaged personal PCs, validated on Windows 11 25H2, and warns on other builds. The tool also documents the GDID lifecycle and includes lab evidence of over 33 hours of protection.