Hotkey driver - Lenovo ThinkPad R60 Notebook

Sounds like your keyboard driver has either stopped working or has been removed. Keyboards will function as normal without specific drivers but hotkeys etc. wont work. Look at the manufactures web site for keyboard drivers, usually they are pretty good at providing the downloads. without them installed correctly hotkeys will not work. Once installed run the software and check the keys assignments.

Well it seams you did not download the software for the hot keys.

Go there :
http://pc-dl.panasonic.co.jp/itn/drivers/d_menu_en.html
Choose your model, OS, language.
Select Category=All Drivers.
From the list, download and (re-)install the Hotkey Manager Driver, Hotkey Settings Application, and Hotkey Appendix Application.

If the hotkeys on a laptop for example, are not performing their designated functions, it may be a good idea to reinstall the drivers that come with said laptop, they are usually found on discs included in a laptop's packaging, this is because when these drivers are not installed, Windows will not recognise them, and either ignore commands from them all together, or perform their alternative function.
One can download the Panasonic Toughbook Hotkey Drivers from this webpage...
http://pc-dl.panasonic.co.jp/dl/recent?dc%5B%5D=002001004

www.driverguide.com should have what your looking for.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

you need to download a driver called "hotkey utility" and the buttons will work again
go to :http://uk.ts.fujitsu.com/support/downloads.html

search for v3515
you will find a list of drivers , scroll down a alittle and you will find hotkey utility , download it , install it ...... try the buttons :) MAGIC

You can get the Hotkey utility driver from the link below
esupport.sony.com

It will give you the driver's list and you can get the hotkey driver under the
Notebook Control and Utilities - 2 file(s)

• Original - Sony® Notebook Utilities

GO ONLINE AND TYPE IN THE ADDRESS BAR:

GATEWAY 7210GX HOTKEYS DRIVERS

WWW.WINDRIVERS.COM/HOTKEYS
WWW.WINDRIVERS.COM/DRIVERS/HOTKEYS
WWW.DRIVERSHQ.COM/HOTKEYS
WWW.DRIVERSHQ.COM/DRIVERS/HOTKEYS
WWW.UPDATEDSOFTWARE.COM/HOTKEYS
WWW.WINDOWS.COM/DRIVERS/HOTKEYS

just install the hotkeys driver from the acer website and they should work again! ^.^