I upvoted because you actually posted technical discussion and details that are accurate. PXE and remote power management is the way. Most workstation BIOS will have IPMI functionality already included. I agree thought that being that these are remote endpoints, it can be more challenging. Having a script to reboot their endpoints into a recovery environment though would be a basic step though in any DR scenario. Mounting the OS partition to delete a file & reboot wouldn’t be a significant endeavor, although one that they’d need to make sure they got right. Still though, it would be hard to mess up for anyone with intermediate computer skills… and you’d hope these companies at least have someone trained to do that rather quickly. They’d have to spend more time writing up a CR explaining all the steps, and then joining a conference call with like 100 people with babies crying in the background… and managers insisting they remain on the call while they write the script.