Have a recent Samsung phone and a Windows 10 PC? Life's about to get a bit easier. Samsung has updated its Flow app to let you use the fingerprint reader on Galaxy devices running Android Marshmallow or newer (such as the S6, S7 and S8) to log into any Windows 10 PC using Hello, not just Samsung's own Galaxy TabPro S. If you regularly keep your phone on-hand, you won't have to enter your password every time you sit down at your computer.