I have read your post.
Please let me know what is the exact application being scanned by McAfee at the time of system crash. So that we can exclude that particular file from McAfee scanning.
Are you sure its only McAfee which is causing the Blue screen ? Do you have any other Antimalware software on your computer ?
Also, there is a possibility that you may be having a hardware device failure as well. Do you have the updated drivers for all your devices ?