A Microsoft file hosting and synchronization service.
No, unfortunately I'm not.
I just now lost two 5TB External drives due to a problem with Explorer randomly opening drives, except this time, they didn't reboot. It was due to a recent update that I missed stopping before it was too late. Ihave tried to prevent updates for a long time due to limited space on my C Drive, and I moved most of my documents and files to external drives. Of course, OneDrive moved them, and critical files that belonged together are now scattered in OneDrive or completely missing. Almost six years' worth of personal files, billing info, lessons, and all my undergraduate and Graduate work have vanished.
Now probably isn't the best time to talk about it. I am so angry I can't see straight.