Microsoft has acknowledged an issue affecting Windows 11 users that may prevent them from signing in via Windows Hello, particularly through facial recognition. This problem occurs after installing a specific Windows 11 update and performing a Push button reset or using the Reset this PC feature with the option to Keep my Files and Local install selected. Users may see messages indicating issues with their PIN or facial recognition setup. A definitive fix has not been released, but users can still log in with a PIN and reconfigure their facial recognition settings.