When a device is currently installed, the driver cannot be removed unless you include the -f (force) switch with the command that removes it.
The command to remove the driver, pnputil.exe -d, must also correctly reference the OEM file number of the .inf file to be removed, which in this case is oem60.inf.
Legacy Player: The "Play online" link above uses the new Quest Viva WebPlayer, which is currently in Beta. In case of issues,
you can try the old WebPlayer.