Hello,
I have a problem with keyboard volume control on my Sony VGN FJ 270/B notebook. I have scanned all viruses Trojan Horses in my system, and I have found many viruses on it. After that, I removed it from my system. When I restarted my computer, the sound will outcome is ok. Unfortunately, I want to use keyboard volume control to adjust my sound. It does not working. I use key Fn+F3,F4 to adjust volume on keyboard. Also other keys with Fn+F5,F6,F7, it does not working as well. I really do not know what was happend after I scanned viruses. Is anyone help me on above situation?
You might have uninstalled a software on your system that support the function keys. Check the support website of your system. You might find the software for your keyboard shortcuts.
These instructions are for Windows XP:
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