L1C63x86.inf for 32 bit system architectureDriver Install - Manual Method
- Download the driver and extract it to a folder.
- Open the Device Manager.
- Right click the device you wish to change the drivers for. You can select Properties > Driver > Driver Details to check you have the right device.
- Choose Update Driver Software.
- Select Browse My Computer For Driver Software.
- Select Let me pick from a list of device drivers on my computer.
- Select Have disk...
- Select Browse..
- Navigate to the extracted folder and double click on the .inf file
- Hit OK, then Next and the driver(s) will then begin to install.
https://www.atheros.cz/atheros-wireless-download.php?chipset=49&system=8
try the 2.1.0.21 version driver from there
Save it to a new folder on your desktop and extract the contents of the zip file and manually install the driver
L1C63x86.inf for 32 bit system architecture
AND
L1C63x64.inf for 64 bit system architecture
It's a Windows 8 driver and apparently the latest available for that Atheros chipset on your network adapter.
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