I have a new XPS 13. Works great. I love the fingerprint login option through the Hello feature of Win 10. However, I've found that if the laptop goes to sleep or is shut down on battery, Hello is not available on startup or wakeup. My password works just fine.
If I shut down or sleep while on power, I can restart or wake up on battery and hello works. It's as though closing down on power sets a flag or something that triggers Hello to be active for the next start or wake.
Doesn't make sense to me, but that's the pattern. Any ideas?