1. Dell Function Keys Driver

Computer Type: PC/Desktop System Manufacturer/Model Number: Medion OS: Windows 10 Pro CPU: Intel Core i7 870 @ 2.93GHz Motherboard: MEDIONPC MS-761 Memory: 12,0GB Dual-Channel DDR3 @ 664MHz (9-9-9-24) Graphics Card: AMD Radeon HD 5800 Series Sound Card: Realtek High Definition Audio Monitor(s) Displays: LG Electronics ( D2342P (GSM5841) / SONY TV (SNY4B03) Screen Resolution: 1920x1080 Keyboard: Logitech USB Mouse: Logitech USB Hard Drives: Samsung SSD 850 EVO 500GB / Hitachi HDS721010CLA332 Internet Speed: Telenet 200 Browser: Brave / Edge / Chrome / Firefox Antivirus: Windows Security.

In your 'Start' menu click on 'Run' and type in services.msc You'll see a long list called Services (Local), click on the name parameter to have them sorted alphabetically. Find the one called VAIO Event Service. Double click this and ensure that for Startup Type it says 'automatic', if it does not, change it to 'automatic' and click 'apply'. Then be sure below that, that the Service Status says 'Started'.

This should help, I had the same problem where I could not use my Fn key to adjust volume or brightness and this solution worked for me. When you format a vaio machine it doesnt always put the Fn controls back the original way. The drivers will be there just not activated on Startup. So you have to enter the msconfig, go to startup and turn on the Hotkeys, depending on the system there can be a number of driver devices which you need to make sure are started up.

If your not sure then turn on all the startup programs and reboot. You should then have the Fn controls back. However you may also have about 40 processes running that you don't need. So turn off those that don't appear to be hotkey controls. You may need to play around with turning some off and reboot for a while.

Dell Function Keys Driver

I think I've solved the problem. I recently installed win7 ultimate x86 (32 bit). It was a clean install and I had no backup of any drivers whatsoever since I was switching to windows from linux.

My vaio model is sz2hp/b. After installing win7 didn't see the GeForce card so I manually installed nVidia driver and then Sony Event services, Sony Shared Library respectively from Windows 7 itself pointed out that there was a missing driver which was 'Sony Programmable I/O Control Device (SPIC)'.

I googled it and decided to install the closest driver I could find which was not really compatible with Win7 but after a few attempts of installing the same driver the problem was somehow solved. Some of the remaining hardware drivers such as the webcam and memory stick reader was found by win7 troubleshooter.

I'm surprised how good the win7 troubleshooter works! Thus far everything was working except the fn key shortcuts. Lastly I went to the same vaio support page and I installed Sony Utils DLL. After installing this last item my Fn keys started to work after a reboot!

Note: All drivers I downloaded from Sony Support site are Vista drivers. I realized that win7 is very compatible with vista drivers, even some XP drivers can solve many problematic hardware.

1.Click the Start button, then click Run. 2.In the Run window, next to Open, type MSCONFIG. 3.Press the ENTER key. 4.In the System Configuration Utility window, click the Startup tab. 5.On the Startup tab, under Startup Item, ensure that there is a check in the HKserv checkbox.

NOTE: If HKserv is missing, reinstall the HotKey Utility application and the Sony Utilities Library. Click the OK button.

In the System Configuration box, click the restart button. IMPORTANT- reinstall the HotKey Utility application and the Sony Utilities Library.

Reinstall the HotKey Utility application and the Sony Utilities Library.