No wifi after trojan

Hello, I have a Sony Vaio with windows 7. I have no home internet access and rely on friends or public libraries etc for access. About a month ago my laptop was infected with the "police trojan" which i removed with trojankill,then removed the remnants with malawarebytes and combofix. It is now operating ok except i have no wireless internet access, even though i can get online with an ethernet cable. Any help would be appreciated.thanks

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Clarification Request
No model number.

This means I can't check if this has some helper app to turn on/off the WiFi. Go check sony for that.

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Laptop Model

My laptop is a model PCG-61211M,thank you

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If it's not a helper app ...

I'm afraid you have to do the system recovery to go back to factory condition.

Luckily, your laptop still works, so you can make a backup of all your personal files and won't lose anything but some time.


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Now that you know that.

Head to Sony's page on your machine with the drivers and apps. I'd look at the WiFi driver and any helper app that turns on/off the WiFi then install both.

You can find this faster than me because most owners have that page bookmarked.

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