BSOD during no specific action: irql_not_less_or_equal

Hey everyone, I'm sure everyone has dealt with this problem and fixed it before... But when it comes to the back end of computing (BIOS and BSODs) idk that much. I get this BSOD every once and a while but sometimes in a span of a couple days it can happen up to 3-4 times a day! I'll link my minidump files and some screenshots with the thread. Any help would be appreciated. Thanks in advance. :)
Attachment 257692
Attachment 257702

Welcome
We need all the files, please upload them following Blue Screen of Death (BSOD) Posting Instructions

And at the moment, it seems that some old drivers from your Atheros network adapter driver are the cause of the BSOD. Please update to latest version available

Sometimes drivers remain, not completely uninstalled. Follow this tutorial for complete removal of drivers of the particular program:

• How to Clean Left Over Driver Files with Driver Sweeper

If its wireless, match your device from here:

• ATHEROS Wireless drivers for Windows

If its not a wireless, match your device from here:

• ATHEROS Network drivers for Windows

BSOD BUGCHECK SUMMARY

Code:

Built by: 7601.17944.amd64fre.win7sp1_gdr.120830-0333
Debug session time: Fri Jan  4 17:02:03.523 2013 (UTC + 6:00)
System Uptime: 0 days 11:38:39.803
Probably caused by : athrx.sys ( athrx+a0601 )
BUGCHECK_STR:  0xD1
DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_0xD1_CODE_AV_NULL_IP_athrx+a0601
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7601.18044.amd64fre.win7sp1_gdr.130104-1431
Debug session time: Sun Mar  3 04:26:04.261 2013 (UTC + 6:00)
System Uptime: 2 days 0:27:59.009
Probably caused by :  athrx.sys ( athrx+5c8c1 )
DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT
BUGCHECK_STR:  0xD1
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_0xD1_athrx+5c8c1
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7601.18044.amd64fre.win7sp1_gdr.130104-1431
Debug session time: Sun Feb 17 11:57:21.282 2013 (UTC + 6:00)
System Uptime: 2 days 19:35:32.375
Probably caused by : athrx.sys ( athrx+5c8c1 )
DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT
BUGCHECK_STR:  0xD1
PROCESS_NAME:  System
FAILURE_BUCKET_ID: X64_0xD1_athrx+5c8c1
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7601.18044.amd64fre.win7sp1_gdr.130104-1431
Debug session time: Wed Jan 30 10:23:05.258 2013 (UTC + 6:00)
System Uptime: 0 days 20:14:10.006
Probably caused by : athrx.sys ( athrx+a0601 )
PROCESS_NAME:  Skype.exe
DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT
BUGCHECK_STR:  0xD1
FAILURE_BUCKET_ID: X64_0xD1_CODE_AV_NULL_IP_athrx+a0601
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``