We in today’s age tend to upgrade the version of Windows every now and then or install an update. There are several reports that after performing such updates, the function keys stop working entirely. This may be either due to the correct drivers not being installed or some services might not be started up. Since each laptop has a different manufacturer, we have tried to cover all the possible solutions. You can make changes or adjust the workaround according to your build.
Solution 1: Starting ‘VAIO Event Service’
As the name suggests, this solution is targeted to users using the Sony VAIO series laptops. The Fn (function) keys which are used to control the brightness or volume stop working all of a sudden after formatting the laptop or installing a Windows update. We will try checking for ‘VAIO event service’ and turn it on if it is turned off.
Solution 2: Checking HKserv in Startup
There is a list in Windows which allows applications to boot themselves up whenever Windows starts up. This list is called “Startup list” and can be accessed easily by the user. There was another indication by Sony users where they indicated that there was a startup service named as HKserv which if not enabled, will cause immense problems while starting up or clicking these buttons. You should make sure that this startup item is enabled on your computer. If HKserv is not present in the list of startup items, you should reinstall Hotkey Utility and Sony Utilities Library. After installing, reboot your computer completely and follow the instructions listed above. Tip: In the newer versions of Windows, you might be redirected to the task manager when you try to manage the startup items. Don’t worry and search there. If you cannot, navigate to the services tab and check your luck there.
Solution 3: Disabling Function lock
Like we discussed problems with Sony VAIO laptops, the same problem (function key) not working also occurs in Dell laptops. Like we mentioned before, each manufacturer has its own configurations regarding hotkeys. In case of DELL, a simple workaround solves the problem instantly. Press Fn + Esc key on your keyboard and then try accessing the function commands such as try changing the brightness again. The terminology behind the workaround is that there are function locks present on the keyboard which locks the functions from being accessed
If you have a laptop of some other manufacturer, you should try searching for a function lock button somewhere on your keyboard. It will be a key denoting F lock or F mode. Click it once and check if this solves the problem. There are several different combinations you can try:
Function key (Fn) + Blue Function Key (Escape Key)Control + Alt + NumlockFunction key (Fn) + NumlockFunction key (Fn) + Windows button + AltFunction (Fn) + Alt
Solution 4: Changing option through Windows Mobility Center
Windows mobility center installed by default on most of the laptops. It displays a streamlined interface consisting of various shortcuts for settings. Most of the time, many manufacturers add their own settings and integrate it in the mobility center. DELL is one such example. We will change the setting of Function Key Row and see if this solves the problem for us.
Solution 5: Checking Function Key Behaviour at BIOS
The BIOS also contains an option from where you can change the function key behavior. We will navigate to the BIOS when your computer and see if the option selected is correct. If it isn’t, we will change it. Do refrain from changing settings which you have no idea of. Doing so might change critical settings and render your laptop useless.
Solution 6: Reinstalling the HotKey Utility
Most laptops come with a hotkey utility which varies from manufacturer to manufacturer. This utility package contains all the necessary drivers needed to make enable the functionality of the function keys. Like we stated throughout the article, there is no specific driver which is generic for all the laptops out there. You have to navigate to your manufacturer’s website and download the required drivers such as “HP Hotkey Support”.
The drivers will go by several different names such as “Special Function key support”. Another thing for you try is resetting the BIOS settings to default and then if the function keys still don’t work, install the required drivers again. Note: Resetting the BIOS will set all the values as default. Proceed at your own risk and understand the consequences.
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