The Driver Verifier dump blames usbfilter.sys which is a Windows system driver and very unlikely to be the cause. It was most likely affected by something else. You can turn off Driver Verifier for now.
I do find a driver loaded on your system. Outdated drivers can and do cause memory corruption and BSOD's. I can't say this is a cause of your crashes; but many times outdated wireless drivers cause trouble.
netr28x.sys Fri Jun 19 03:56:06 2009 - Ralink RT2860 series Wireless LAN Card (you may have a different manufacturer)Ralink corp.
. Update your wireless router driver.