I have a new Dell XPS 15 with Win 10 Pro. Windows File Explorer keeps on insistently popping up this window:
(the huge size is an unrelated windows 10 bug to do with mixed high-DPI laptop screens with low-DPI external monitors)
I have no idea what I'm supposed to be signing in to, and my computer/microsoft password does nothing. I have no network drives or shared folders. Homegroup is not enabled, and file/printer sharing is disabled. What is it, and how can I get rid of it?