New dongle models, starting with Guardant Sign, are able to work on the Windows family of operating systems without Guardant drivers installed. For this you need to initially switch the dongles into the Human Interface Device (HID) mode using the GrdUtil.exe utility.
When connecting a dongle in HID mode to the USB port of a computer, the system will recognize the dongle as a standard HID-compatible device, after which the dongle will be ready to work immediately.
The operating modes of Guardant dongles in HID-mode, and those with a standard driver are identical from the user’s perspective.