While unfortunately there's no crashdumps in your archive file (try seeing if there's any in Windows/Minidump
directory) I do see in the syslog a very consistent crash pattern, which leaves me to believe there's a driver
You'll want to update your Broadcom LAN drivers
, your Atheros wifi drivers and your audio drivers since all those share resources with each other. I am particularly suspicious about your Broadcom drivers since they are dated prior to official retail release of Windows 7. Test wired connection afterwards to confirm it fixes the bug. Analysts:
Syslog shows up 0x7f (UNEXPECTED_KERNEL_MODE_TRAP) bugcheck with 0x8 subcode (double fault). Most likely this is caused by a thread overrunning its allotted stack, which often is a case of a driver bug.