PnPUtil.exe cannot enumerate devices with Extension class

guliteb 36 Reputation points
2021-04-04T06:48:18.333+00:00

PnPUtil.exe cannot enumerate devices of Extension class.

PnPUtil.exe /enum-devices /class Extension or pnputil.exe /enum-interfaces /class {e2f84ce7-8efa-411c-aa69-97454ca4cb57} returned 'No devices were found on the system.'
84301-pnputil-extension.png

Windows Hardware Performance
Windows Hardware Performance
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.Hardware Performance: Delivering / providing hardware or hardware systems or adjusting / adapting hardware or hardware systems.
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  1. Zac Lockard 116 Reputation points Microsoft Employee
    2021-04-06T19:50:27.827+00:00

    Extension is not a device class, no devices can have that class. INFs can be the class 'extension', which specifically means it is not the device class or main driver for the device, but instead contains supplemental operations for the main driver.

    1 person found this answer helpful.
  2. Castorix31 81,361 Reputation points
    2021-04-04T07:18:11.9+00:00

    Did you check if you get them with PowerShell, like : 

    Get-PnpDevice -Class 'Extension'