What happens if your online Windows account gets banned? How do you log in?
replies(1):
Tough, isn't it ? Your security is very important _for us_. Your privacy is very important _for us_. See PayPal, Stripe, Google and other "services" for examples.
To directly answer: I have a Win 10 without MS account. Disk got corrupted, chkdsk cannot repair, cannot boot. Checking messages on screen was something like "online chkdsk failed". Unplugging the ethernet cable "fixed" the issue.