I am in IT and have been dealing with this since I walked in this morning. Almost every system (500+) was at a bluescreen. No amount of rebooting fixed any of ours. We also had bitlocker on most of them which added to the headache. But just to put the recovery from this into perspective, I had to go to every system and boot them into recovery mode and delete the offending file from a DOS prompt. The reports and crowdstrike are making it sound like they handed us a life raft quickly. No they didn't. Most of the time, once a system is in a blue screen loop, there is no "pushing" a fix to it. So from what it takes to get all the systems back on line, that should give a good idea of how long it might take for everything to get back up and running. And also, give your IT people some slack today. It has been rough.