Show unused device driver

The driver is still there (installed) but "ghosted"...

1) Add this environment variable: devmgr_show_nonpresent_devices with the value of 1

env var show hidden drvr

2) Launch devmgmt.msc and choose the option to show hidden drivers

In this example, the driver for the unplugged digital camera appear in the list...

devmgmt show hiddden

Done.