Like in the topic. Please help; after upgrading to Win 10 there is no keys-backlight after using the FN + Z combination. in bios (after upgrading) everything is fine; so when I turn backlight ON or OFF backlight runs out, but there is problem with Toshiba Funcktion Key driver I think.
I did the reinstalation of this driver, have others toshiba drivers for Win 10 installed (Eco, system driver etc.). Toshiba Funckction key runs for several seconds after system bots up, and is blocked (?) by something after jus several seconds. Weird and very annoying. The fun is that combination for screen brightness (FN + F6 or F7) and for volume up/down (FN + 3 / 4) runs perfectly vell. Backlight
I think the problem is connected with Toshiba Funcktion Key program.

Please help ! Portege is the top class of Toshiba laptops.