I have lenovo s540 . I installed own original version win 8.1. I have problem with some functional keys. Especially with
F4- Microphone mute
F8 - manage wireleless connection
F10- win search
F11 - view programs that are opened
F12 - view all the programs
I think thats I need driver but I dont know which .
Can you help me ? Thanks
Please check you have installed the Hotkey feature application from Lenovo's support site, or else download and install ThinkVantage System Update utility, it is an application which checks’s and enables downloading all of the required drivers and application for your system.