Will your laptop recognize you in the dark? Maybe. Maybe not. An April patch update for Windows now “requires color cameras” to see a visible face when signing in, according to Microsoft via ...

The newest revision of Windows Hello Face requires a color camera to authenticate logins in addition to the use of IR sensors, somewhat limiting the function's usability in low-light scenarios.

Windows Hello is acting up after Microsoft's last patch. If your PC doesn't recognize your face, it might need a little kick with this workaround.