Your Toshiba T20 laptop! has a new operating system installed on it and most of the devices are not working properly now you need to update the drivers. Download Toshiba T20 Wifi+WLAN+Bluetooth Drivers Windows. Find the most complete wireless, WLAN, Bluetooth, and wifi driver for Toshiba T20.
So as far as your Keyboard device is concerned it will probably not work until you install the correct Toshiba T20 driver, here are all the Keyboard drivers related to Toshiba T20 driver for the different operating systems. Here is a list of nearly all the available drivers for Toshiba T20 for operating systems such as Windows 10, Windows 8.1, Windows 7, Windows Vista, Windows XP.
Simply find your relevant driver and proceed onto the link and download your required file.
ATK0100 ACPI UTILITY
Version: 1043.2.15.75 (recommended)
Date: 13.05.2009
Driver Type: other device
Manufacturer: ASUS
Operating Systems: Windows 10 x64
Synaptics SMBus TouchPad
Version: 19.0.19.1 (recommended)
Date: 05.08.2015
Driver Type: input device
Manufacturer: Synaptics
Operating Systems: Windows 10 x64
Realtek High Definition Audio
Version: 6.0.1.8619 (recommended)
Date: 15.01.2019
Driver Type: sound card
Manufacturer: Realtek
Operating Systems: Windows 10 x64
TOSHIBA Software Modem
Version: 2.2.89.3 (recommended)
Date: 11.11.2008
Driver Type: modem
Manufacturer: Agere
Operating Systems: Windows 10 x64