This is continuation from ticket
In Live CD the "Reinstall Driver" button is never displayed for unknown devices in the Device Manager. This may be related to the problem with displaying "Other Devices" class - see CORE-17576.
It should be possible to fix this by triggering a second run for the User-mode Plug-n-Play manager (umpnpmgr) right before starting ReactOS Explorer in Live CD, but our NT kernel PnP implementation may be incomplete to handle this properly.
Debug log: 0.4.15-dev-4569-g032c50f.txt