WHEA error at 11.02 crashed Defender? How odd.
WHEA = Windows Hardware Error Architecture. Its an error called BY CPU but not necessarily caused by it.
Can be caused by overclocking software so things like Easytune Overclock (that is loaded), INtel Extreme Overclocking Utility (which is also loaded (the last 2 drivers may be part of same program))
also caused by heat
Can be caused by any hardware
Sometimes caused by drivers.
Never seen a FAT File System error before?
mentions fastfat which is the windows 12/16/32 File system driver... Are you running any real old software? are you using a USB as ram? Readyboost?
Try updating LAN drivers -
https://support.killernetworking.com/download/killer-drivers-installation-64bit/