content: If it's the story I read, the device started an AV scan mid-procedure, the scan blocked access to files the device needed to run, so the OS crashed and the surgeons had to reboot the device mid-operation. This was an IT department failure to RTFM re: AV scans.  All this aside, Microsfts "one OS for all the things" madness will cause some serious problems in the coming months as incompatabilities cause failures in critical system components.