The blue screen comes back as Bug Check 0x3B: SYSTEM_SERVICE_EXCEPTION
"The SYSTEM_SERVICE_EXCEPTION bug check has a value of 0x0000003B. This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code. "
Are you running both at the same time? If so, turn one of them off and only use it as a manual scanner. Better yet, uninstall one of them completely. Running 2 Antivirus programs simultaneously is probably one of the dumbest things one can do. It's a classic case of "1 is good, so 2 must be better, right?". I wouldn't blame you if this is the case though, as I made this mistake years ago, and know many people personally that did the same.