I has the same problem! I have CA firewall installed. then when i used filezilla ftp client or entered my cPanel of my website, i got a bluescreen!
The error message said driver_irql_not_less_or_equal and i got a tcpip.sys and kmxfilter.sys error scripts.
So i had my girlfriend go online and google it, she found this thread, read off the solution, to open devmgmt.msc and fix the kmx files to demand and it worked when i restarted!
You guys rock man!