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.
PnPUtil.exe cannot enumerate devices with Extension class
guliteb
36
Reputation points
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.'
2 answers
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Zac Lockard 116 Reputation points Microsoft Employee
2021-04-06T19:50:27.827+00:00 -
Castorix31 81,721 Reputation points
2021-04-04T07:18:11.9+00:00 Did you check if you get them with PowerShell, like :
Get-PnpDevice -Class 'Extension'