Microsoft released an emergency patch for a bug that breaks USB device functionality in Windows Recovery Environment.

Reboot into Windows RE from a previously-created USB recovery drive. This is the ideal solution, since the USB recovery drive ...

To access Emergency Restart, press the CTRL + ALT + DEL keys on your Windows PC -- a pretty normal action. However, this time, hold down the CTRL key and click the power button in the bottom-right ...

The update caused a slew of issues, including disabling mice and keyboards in recovery mode and network connections for locally hosted apps.