Wireless Network Adapter Not Working Since Reformat

Sep 2, 2011

I reformatted my father's laptop, upgrading the OS from Vista to Windows 7 but now the wireless network adapter isn't working. Basically, the laptop doesn't know that it has wireless. In device manager there is an exclamation mark against the "Atheros AR5007UG Wireless Network Adapter" entry. I've tried uninstalling the driver and reinstalling it, restarting the computer, updating the driver etc but it always fails to install the driver correctly. I don't know for sure the model of the network adapter, (windows tells me it's atheros but I'm not convinced seeing as the driver always fails to install) so I can't go to the manufacturer's website to download the latest drivers. I opened up the laptop but couldn't see any brand names on the network card. I don't have the cd's with the drivers on them.

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Diagnostics Information (Network Adapter)
Details about network adapter diagnosis:
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[Code].....

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