Hi,
A critical update was already released, and will be automatically installed through Windows Update for Windows 10 users. To learn more about it, kindly refer to this page: January 3, 2018—KB4056892 (OS Build 16299.192). That article also includes information about the known issues with the update, and the steps that you can take to resolve them.
Don't hesitate to reach out to us if you need further assistance with your concern.