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?
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A Trojan Horse is full of as much trickery as the mythological Trojan
Horse it was named after. The Trojan Horse, at first glance will appear
to be useful software
but will actually do damage once installed or run on your computer.
Those on the receiving end of a Trojan Horse are usually tricked into
opening them because they appear to be receiving legitimate software or
files from a legitimate source. When a Trojan is activated on your
computer, the results can vary. Some Trojans are designed to be more
annoying than malicious (like changing your desktop,
adding silly active desktop icons) or they can cause serious damage by
deleting files and destroying information on your system. Trojans are
also known to create a backdoor
on your computer that gives malicious users access to your system,
possibly allowing confidential or personal information to be
compromised. Unlike viruses and worms, Trojans do not reproduce by
infecting other files nor do they self-replicate.
if the function key of your keyboard not working, the primary reason is
the chipset driver of your mainboard not installed. you need to load
your cd/dvd driver to your cd/dvd rom then you can find the list of
drivers and select the chipset driver click it and follow screen
instruction after installation restart and done. be sure to locate the
chipset driver base of your OS.
Go to start->control panel->system->hardware->device manager. Expand Universal Serial Bus controllers. Right click on every USB root hub and select uninstall option. They will be reinstalled on next restart.
After that plug USB pen drive to usb port - go to start->control panel->system->hardware->device manager. Click Universal Serial Bus controllers then click on Action tab (the one at the top of Device manager window and select scan for hardware changes.
If that will not solve the issue try different USB port.
Make sure you have latest service pack installed so Windows would install proper drivers for the device.
Let me know if this is not solved
We need to understand first that there are differences between all malicious softwares. Spywares, viruses, malwares, trojan horses are to name a few. the soyware doctor can fix spyware issues but cannot control the action of a virus. try installing a good anti virus software viz. mcafee and scan the hard disk. Mostly the issue gets fix elase if the registry changes have happened then you wil be required to format the hard disk. Hope I helped you.