Not less or equal blue screen

Hello,

I keep getting the blue screen above, I have no idea how to fix it. I am not very computer savvy so please, keep that in mind with responses ok? I appreciate any help I can get on this. Also, I am not sure if this is related or not but when ever my computer wakes from sleep mode, it freezes and I have to restart it.

I am running windows 7 ultimate 64bit the OS was installed with purchase. I bought it in Jan of this year, not sure how to find out what the rest of the needed info is sorry.

Two dumps blame arthrx.sys, your Wlan card driver

Update your driver: Atheros Communications

This was likely caused by the following module: athrx.sys
Bugcheck code: 0xD1 (0x1C, 0x2, 0x1, 0xFFFFF880051766E8)
Error: DRIVER_IRQL_NOT_LESS_OR_EQUAL

Thank you, but this raises other questions for me, I went to the link provided and found the set of drivers for windows 7 when I click on it it only gives me the user agreement page when I agree, it gives me the option to save or open with firefox, I tried both when I open it with firefox, I get nothing but textand symbols, when I save it I don't know what program to open it with.

So I tried to install the driver and it said I don't have that ethernet driver installed, not sure what to do from here